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<blockquote data-quote="Andyva" data-source="post: 1240439" data-attributes="member: 1022"><p>The dominant red in Holsteins is pretty straight forward, it's like the African horn gene, except as far as I know it isn't sex linked. You have dominant black, and recessive red and then dominant red, which is dominant to both recessive red and dominant black. The thing that makes people confused on the African horn gene is that you can have a hetero African horned cow that is polled and she can throw other hetero African horned calves, and as it is a dominant, all hetero African horned bull calves will show horns. This could make it seem to come out of the woodworks a long way down the line. As far as I know, the whiteface gene is totally dominant and a solid calf from a whiteface parent would indicate that the whiteface animal is hetero for the whiteface gene.</p></blockquote><p></p>
[QUOTE="Andyva, post: 1240439, member: 1022"] The dominant red in Holsteins is pretty straight forward, it's like the African horn gene, except as far as I know it isn't sex linked. You have dominant black, and recessive red and then dominant red, which is dominant to both recessive red and dominant black. The thing that makes people confused on the African horn gene is that you can have a hetero African horned cow that is polled and she can throw other hetero African horned calves, and as it is a dominant, all hetero African horned bull calves will show horns. This could make it seem to come out of the woodworks a long way down the line. As far as I know, the whiteface gene is totally dominant and a solid calf from a whiteface parent would indicate that the whiteface animal is hetero for the whiteface gene. [/QUOTE]
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