horsecolgepr - HORSE COLOR AND SPOTTING GENETICS PROBLEM...

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HORSE COLOR AND SPOTTING GENETICS PROBLEM SET ANS 3384 1. A bay mare whose dam was black and whose first foal was a sorrel is bred to a black stallion know to carry the e gene by DNA testing. What are the probable colorations in the potential progeny? 2. A palomino mare is bred to a bay stallion whose dam was a sorrel. What are the probably colorations of the progeny? Assume that both parents are A/A at the A locus. 3. Why must a gray horse have at least one gray parent? 4. A red dun mare (her dam was a grulla and her sire was a sorrel) and which had previously had a dun (bay + Dun) foal when bred to a black stallion, is bred again to the same black stallion. The black stallion has previously produced sorrel foals. What are the expected ratios of progeny from the mating of this black stallion to the red dun mare? 5. A red roan (sorrel + roan) known to be A/a at the A locus is bred to a blue roan (a/a E/e R/r) stallion, what phenotypic ratios would you expect in those foals BORN from this mating? 6.
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This note was uploaded on 07/16/2011 for the course ANS 3384 taught by Professor Olson during the Spring '09 term at University of Florida.

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horsecolgepr - HORSE COLOR AND SPOTTING GENETICS PROBLEM...

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