https://www.explainxkcd.com/wiki/index.php?title=634:_Date&feed=atom&action=history634: Date - Revision history2024-03-28T16:25:16ZRevision history for this page on the wikiMediaWiki 1.30.0https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=329110&oldid=prev172.70.93.50: /* Explanation */ Added a dedicated explanation for the title text for the comic2023-11-16T07:13:56Z<p><span dir="auto"><span class="autocomment">Explanation: </span> Added a dedicated explanation for the title text for the comic</span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 07:13, 16 November 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l19" >Line 19:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Color blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Color blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The title text mentions how a child with Megan and Cueball as their parents would almost certainly grow up to share the same interest in biology as both of their parents. Although a child would share certain traits with their parents, either ones that are genetic or ones picked up in their respective childhoods spent with their parents, the claim made in the title text is not guaranteed to become true as a child would most likely differ from their parents in some way or another, due to factors such as different life experiences and a different background that the child grew up in compared to their parents.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td></tr>
</table>172.70.93.50https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=297311&oldid=prevJLZ0kTC5 at 15:20, 21 October 20222022-10-21T15:20:30Z<p></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 15:20, 21 October 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12" >Line 12:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms, be they plant or animal (including humans). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms, be they plant or animal (including humans). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''a''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''Aa'', ''AA'' and ''Aa''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if "a" was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''aa'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye <del class="diffchange diffchange-inline">colour </del>could not possibly have an offspring with a certain other blood type or eye <del class="diffchange diffchange-inline">colour</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''a''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''Aa'', ''AA'' and ''Aa''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if "a" was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''aa'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye <ins class="diffchange diffchange-inline">color </ins>could not possibly have an offspring with a certain other blood type or eye <ins class="diffchange diffchange-inline">color</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>More complicated Punnett squares can factor in multiple genes and be larger in scale, but ultimately follow the same principle. The premise for the purposes of the comic is that by using Punnett squares, one can assess the likelihood of certain genetic traits (such as hair <del class="diffchange diffchange-inline">colour </del>or <del class="diffchange diffchange-inline">colour </del>blindness) in their offspring with another person. One would have to know their genetic makeup in general for this to be possible.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>More complicated Punnett squares can factor in multiple genes and be larger in scale, but ultimately follow the same principle. The premise for the purposes of the comic is that by using Punnett squares, one can assess the likelihood of certain genetic traits (such as hair <ins class="diffchange diffchange-inline">color </ins>or <ins class="diffchange diffchange-inline">color </ins>blindness) in their offspring with another person. One would have to know their genetic makeup in general for this to be possible.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|<del class="diffchange diffchange-inline">Colour </del>blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|<ins class="diffchange diffchange-inline">Color </ins>blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td></tr>
</table>JLZ0kTC5https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=247300&oldid=prevJacky720: rv2022-05-04T21:09:56Z<p>rv</p>
<a href="//www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=247300&oldid=242507">Show changes</a>Jacky720https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=242507&oldid=prevEx Kay Cee Dee at 20:16, 4 May 20222022-05-04T20:16:40Z<p></p>
<a href="//www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=242507&oldid=241485">Show changes</a>Ex Kay Cee Deehttps://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=241485&oldid=prevWhile False: Undo revision 240403 by Ex Kay Cee Dee (talk)2022-05-04T18:16:12Z<p>Undo revision 240403 by <a href="/wiki/index.php/Special:Contributions/Ex_Kay_Cee_Dee" title="Special:Contributions/Ex Kay Cee Dee">Ex Kay Cee Dee</a> (<a href="/wiki/index.php/User_talk:Ex_Kay_Cee_Dee" title="User talk:Ex Kay Cee Dee">talk</a>)</p>
<a href="//www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=241485&oldid=240403">Show changes</a>While Falsehttps://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=240403&oldid=prevEx Kay Cee Dee at 17:17, 4 May 20222022-05-04T17:17:21Z<p></p>
<a href="//www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=240403&oldid=160801">Show changes</a>Ex Kay Cee Deehttps://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=160801&oldid=prev162.158.74.177: /* Explanation */ recessive alleles are typically denoted with the lowercase form of the letter used to denote a dominant allele, not another unique letter2018-08-03T23:27:17Z<p><span dir="auto"><span class="autocomment">Explanation: </span> recessive alleles are typically denoted with the lowercase form of the letter used to denote a dominant allele, not another unique letter</span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 23:27, 3 August 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12" >Line 12:</td>
<td colspan="2" class="diff-lineno">Line 12:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms, be they plant or animal (including humans). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms, be they plant or animal (including humans). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''<del class="diffchange diffchange-inline">B</del>''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''<del class="diffchange diffchange-inline">AB</del>'', ''AA'' and ''<del class="diffchange diffchange-inline">AB</del>''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if <del class="diffchange diffchange-inline">B </del>was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''<del class="diffchange diffchange-inline">BB</del>'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''<ins class="diffchange diffchange-inline">a</ins>''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''<ins class="diffchange diffchange-inline">Aa</ins>'', ''AA'' and ''<ins class="diffchange diffchange-inline">Aa</ins>''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if <ins class="diffchange diffchange-inline">"a" </ins>was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''<ins class="diffchange diffchange-inline">aa</ins>'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>More complicated Punnett squares can factor in multiple genes and be larger in scale, but ultimately follow the same principle. The premise for the purposes of the comic is that by using Punnett squares, one can assess the likelihood of certain genetic traits (such as hair colour or colour blindness) in their offspring with another person. One would have to know their genetic makeup in general for this to be possible.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>More complicated Punnett squares can factor in multiple genes and be larger in scale, but ultimately follow the same principle. The premise for the purposes of the comic is that by using Punnett squares, one can assess the likelihood of certain genetic traits (such as hair colour or colour blindness) in their offspring with another person. One would have to know their genetic makeup in general for this to be possible.</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l18" >Line 18:</td>
<td colspan="2" class="diff-lineno">Line 18:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Colour blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Colour blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed<ins class="diffchange diffchange-inline">, </ins>if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td></tr>
</table>162.158.74.177https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=152994&oldid=prev162.158.155.26: /* Explanation */ Humans are animals2018-02-23T09:17:52Z<p><span dir="auto"><span class="autocomment">Explanation: </span> Humans are animals</span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 09:17, 23 February 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10" >Line 10:</td>
<td colspan="2" class="diff-lineno">Line 10:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Cueball]] and [[Megan]] (as biologists) are on a first date. As opposed to the usual romantic talk or discussion about each other's histories or character, the comic suggests that 30% of the time, two biologists on a first date will end up making {{w|Punnett square}}s, which non-biologists might not consider very interesting or romantic. The comic may be a play on the idea that couples on a first date might wonder about (or on a very promising date, even discuss) the traits in the other person that might be passed on to potential children.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Cueball]] and [[Megan]] (as biologists) are on a first date. As opposed to the usual romantic talk or discussion about each other's histories or character, the comic suggests that 30% of the time, two biologists on a first date will end up making {{w|Punnett square}}s, which non-biologists might not consider very interesting or romantic. The comic may be a play on the idea that couples on a first date might wonder about (or on a very promising date, even discuss) the traits in the other person that might be passed on to potential children.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms <del class="diffchange diffchange-inline">(</del>be they plant<del class="diffchange diffchange-inline">, </del>animal<del class="diffchange diffchange-inline">, or human</del>). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two organisms<ins class="diffchange diffchange-inline">, </ins>be they plant <ins class="diffchange diffchange-inline">or </ins>animal <ins class="diffchange diffchange-inline">(including humans</ins>). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''B''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''AB'', ''AA'' and ''AB''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if B was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''BB'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''B''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''AB'', ''AA'' and ''AB''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if B was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''BB'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td></tr>
</table>162.158.155.26https://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=152955&oldid=prevRamenChef: /* Explanation */2018-02-22T18:42:59Z<p><span dir="auto"><span class="autocomment">Explanation</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 18:42, 22 February 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10" >Line 10:</td>
<td colspan="2" class="diff-lineno">Line 10:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Cueball]] and [[Megan]] (as biologists) are on a first date. As opposed to the usual romantic talk or discussion about each other's histories or character, the comic suggests that 30% of the time, two biologists on a first date will end up making {{w|Punnett square}}s, which non-biologists might not consider very interesting or romantic. The comic may be a play on the idea that couples on a first date might wonder about (or on a very promising date, even discuss) the traits in the other person that might be passed on to potential children.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Cueball]] and [[Megan]] (as biologists) are on a first date. As opposed to the usual romantic talk or discussion about each other's histories or character, the comic suggests that 30% of the time, two biologists on a first date will end up making {{w|Punnett square}}s, which non-biologists might not consider very interesting or romantic. The comic may be a play on the idea that couples on a first date might wonder about (or on a very promising date, even discuss) the traits in the other person that might be passed on to potential children.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two <del class="diffchange diffchange-inline">individuals </del>(be they plant or <del class="diffchange diffchange-inline">animal</del>). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A Punnett square is a simple diagram used in biology to determine the probable resulting {{w|genotype}} of cross-breeding two <ins class="diffchange diffchange-inline">organisms </ins>(be they plant<ins class="diffchange diffchange-inline">, animal, </ins>or <ins class="diffchange diffchange-inline">human</ins>). The diagram shows all possible results of crossing a single {{w|genotype}} from each parent in the offspring genotype following {{w|Mendelian inheritance}}.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''B''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''AB'', ''AA'' and ''AB''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if B was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''BB'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>For humans and most animals, there are two alleles for each gene, and each parent passes one of their alleles for each gene on to the offspring. The most simple Punnett square is a 2x2 table with a legend of the two paternal alleles on one axis (e.g.: ''A'' and ''A'') and the two maternal alleles on the other axis (e.g.: ''A'' and ''B''). Each box of the Punnett square represents a possible genetic outcome as a result of each each of the alleles being passed on to the offspring (''AA'', ''AB'', ''AA'' and ''AB''). For certain genetic traits, one genotype may determine a specific trait in the offspring; e.g. black hair in rats. Certain genotypes have dominant and recessive alleles. An offspring must have both of the recessive alleles to display the recessive trait; in the above example, if B was an allele for a recessive trait, the offspring could not have the recessive trait, as there is no possible ''BB'' outcome. This is the basic principles that allows statements to be made that two parents with a certain blood type or eye colour could not possibly have an offspring with a certain other blood type or eye colour.</div></td></tr>
</table>RamenChefhttps://www.explainxkcd.com/wiki/index.php?title=634:_Date&diff=69712&oldid=prev173.245.55.74: /* Explanation */2014-06-17T14:54:55Z<p><span dir="auto"><span class="autocomment">Explanation</span></span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 14:54, 17 June 2014</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l18" >Line 18:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While a genotype refers to the genetic makeup of an organism, a {{w|phenotype}} as referenced in the title text refers to the resulting traits (e.g.: Red hair is a phenotype).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and <del class="diffchange diffchange-inline">colour </del>blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Colour blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Once thought to have fairly simple genetic factors, eye <del class="diffchange diffchange-inline">colour </del>is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and <ins class="diffchange diffchange-inline">color </ins>blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Colour blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness<ins class="diffchange diffchange-inline">. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness</ins>. Once thought to have fairly simple genetic factors, eye <ins class="diffchange diffchange-inline">color </ins>is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Transcript==</div></td></tr>
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