Question

Hemophilia is a recessive sex-linked disorder. A man with hemophilia has a daughter of normal phenotype. She marries a man who is normal for the trait. What is the probability that a daughter of this mating will be a hemophiliac? That a son will be a hemophiliac? If the couple has four sons, what is the probability that all four will be born with hemophilia.

Answer 1

Hemophilia is an X-linked recessive trait.

Step-by-step explanation:

A non-hemophiliac father and a hemophiliac mother have a son.

What is the percent chance that the son will be a hemophiliac?