When a color-blind man marries a woman who is heterozygous for the trait, which of the following proportions is related to their sons being color-blind?

Question

Quizplus · Accepted Answer

Color blindness is an X-linked recessive trait. A color-blind man has the genotype X^cY, and a heterozygous woman has the genotype X^CX^c. Their sons can inherit either the X^c from their mother or the X^C from their mother paired with the Y from their father. This results in a 50% chance of the sons being color-blind (X^cY).

When a Color-Blind Man Marries a Woman Who Is Heterozygous