In wolves,gray coat color (G)is dominant to black (g)and brown eyes (B)are dominant to blue (b).The genes that control these traits are located on different chromosomes.The alpha male of the pack has the dominant phenotype for both traits and is heterozygous for both traits.The alpha female has brown eyes and a black coat;she is heterozygous for eye color.The alpha male and the alpha female mate.What proportion of their offspring will have the same phenotype as the mother?
A)1/16
B)3/16
C)3/8
D)1/2
E)None

Question

Quizplus · Accepted Answer

The alpha male's genotype is GgBb, and the alpha female's genotype is ggBb. The offspring with the same phenotype as the mother (black coat and brown eyes) will have the genotype ggB_. The probability of gg is 1/2, and the probability of B_ is 3/4. Therefore, the proportion is (1/2) * (3/4) = 3/8.

In Wolves,gray Coat Color (G)is Dominant to Black (G)and Brown