Hemophilia B is an X-linked recessive trait that causes problems with blood-clotting.
1. If a normal man and a woman who is a carrier for hemophila decide to have children, what is the probability their first child will have hemophila? Please show your work using a Punnett Square.
2. How would X inactivation in the woman described above (a carrier for hemophilia) affect her phenotype for hemophilia symptoms?
