Thursday, August 18, 2011

Help me pls?

In Cattle the polled (hornless) condition (P) is dominant over the horned (p) phenotype. A particular polled bull is bred to 3 cows. With cow A, which is honred, a half calf is produced; with a polled cow B a horned calf is produced; and with honred cow C a polled calf is produced. What are the genotype of the bull and the three cows, and what phenotypic ratios do you expect in the offspring of the three matings?

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