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Coloration genetic question for you knowledgeable folk!
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 1651021" data-attributes="member: 968"><p>Really didn't follow that - but - if it is red - it is <strong>homozygous red</strong>. Red needs two genes to be expressed as the color red.</p><p>I do not know if the wild-type color gene is dominant or recessive. Here is an explanation I read:</p><p>"The wild-type allele allows for the production of both red and black pigment. Many Simbrah and most Brahman have the wild type and also Brown Swiss, Tarantaise, and Jersey. A brindle also has a wild type allele. Many red breeds carry the brindle gene but it is not expressed unless the animal has a wild-type allele. Most European (fullblood) Simmentals do not carry the brindle gene. Red breeds like Hereford, Red Angus and some red Simmentals may also carry the brindle gene but it is not expressed unless combined with a wild-type. Some Red Angus and Red Simmentals have one copy of the wild-type Extension. They often have a black nose."</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 1651021, member: 968"] Really didn't follow that - but - if it is red - it is [B]homozygous red[/B]. Red needs two genes to be expressed as the color red. I do not know if the wild-type color gene is dominant or recessive. Here is an explanation I read: "The wild-type allele allows for the production of both red and black pigment. Many Simbrah and most Brahman have the wild type and also Brown Swiss, Tarantaise, and Jersey. A brindle also has a wild type allele. Many red breeds carry the brindle gene but it is not expressed unless the animal has a wild-type allele. Most European (fullblood) Simmentals do not carry the brindle gene. Red breeds like Hereford, Red Angus and some red Simmentals may also carry the brindle gene but it is not expressed unless combined with a wild-type. Some Red Angus and Red Simmentals have one copy of the wild-type Extension. They often have a black nose." [/QUOTE]
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Coloration genetic question for you knowledgeable folk!
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