In cats, black coat (B) is codominant with yellow (b).The coat color gene is on the X chromosome.Calico cats, which have coats with black and yellow patches, are heterozygous for the coat color alleles.A calico female, Pickle, has a litter, whose characteristics are found in the table. What is the genotype and phenotype of the father? A) X^BY; yellow B) X^bY; yellow C) X^BY; black D) X^bY; black E) X^bY; calico

Question

Quizplus · Accepted Answer

Since Pickle, the calico female, is heterozygous for the coat color alleles (Bb), we know that she must have received a black allele (B) from one parent and a yellow allele (b) from the other parent. Since the coat color gene is on the X chromosome and Pickle is female, we know that her father must have contributed the yellow allele (b), as females inherit one X chromosome from each parent. Therefore, the genotype of the father must be XbY. We also know that he must be yellow because he did not contribute a black allele to Pickle. Therefore, the correct answer is choice B (X^bY; yellow).

In Cats, Black Coat (B) Is Codominant with Yellow (B)