Hemophilia A is an X-linked recessive disorder.If a normal man marries a woman who is a carrier,what fraction of their daughters will have hemophilia?

Question

Quizplus · Accepted Answer

Since hemophilia A is X-linked recessive, daughters would need to inherit two affected X chromosomes to have the disorder. A carrier mother can pass on one affected X, but the normal father will pass on a normal X, so none of the daughters will have hemophilia.

Hemophilia a Is an X-Linked Recessive Disorder