A woman with normal blood clotting mates with a man who also has normal blood clotting. Their first child is a boy
who has hemophilia. Tests show that the child's hemophilia is X-linked and that he has normal genetic inheritance. You
can predict that if the couple has more children together, then it is likely that ____.
a. all of the children will have hemophilia
b. half of the boys and none of the girls will have hemophilia
c. none of the rest of children should have hemophilia
d. all of the boys and half of the girls will have hemophilia
e. half of the boys and half of the girls will have hemophilia
ANSWER: b
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