Question

It is found that in cha-cha chickens, the allele for a double comb (A) is dominant to the allele for a single comb (a). A mother with the genotype Aa and a father with the genotype Aa produce an offspring.
What is the percent chance that the offspring will have a single comb? % (only include the number)

Answer 1

There is a 25% chance that the offspring will have a single comb.