In horses coat color is dependent upon genes as follows:
A_B_ results in bay, aaB_ in black, A_bb in chestnut, aabb
in liver. In addition, palimino is derived by Dd with
chestnut. A palimono stallion (DdAAbb) is crossed with a
palimino mare (DdAAbb). What percent of the offspring will
be palimino?
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Answer / Sachin Tyagi
Both parents are heterozygous for dilution (Dd), so all offspring will have one copy of the dilution gene (either D or d). The coat color genes are independent of the dilution gene, so each offspring will have a 1/2 chance of inheriting the chestnut gene from either parent. Therefore, half of the offspring will be palimino (chestnut with stripes) and the other half will be non-palimino (either bay or liver).
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