What is the probability of the offspring having hemophilia for the cross that is shown in the Punnett square? 0 percent
25 percent
50 percent
75 percent

B. 25%

Explanation:

A 25% (one in four) chance of having a son with hemophilia; a 25% chance of having a son with normal blood clotting; a 25% chance of having a daughter who is a carrier; a 25% chance of having a daughter who has hemophilia; This is shown in Figure 2-6. It is very rare for a man with hemophilia and a woman who is a carrier to get together.