A certain polled bull was bred to three cows. With cow A, which is polled, a horned calf was produced; with cow B, which is polled, a polled calf was produced; and with cow C, which is horned, a polled calf was produced. What are the genotypes of all these four animals [bull, cow A, cow B, and cow C], and what are the possible phenotypes and genotypes of the resulting offspring that you would expect from these three mating. Illistrate
A polled bull bred to horned cows that produce one or more horned calves is heterozygous polled (one recessive gene for horns), regardless of how many polled calves are produced.
