Answer to Question #293517 in Genetics for Nana

Question

 If a man carries a recessive sex-linked trait on his X chromosome, what is the possibility that his children will inherit the disease if their mother is not a carrier of the disease?

0%

100%

75%

50%

Answer 1

50%

With each pregnancy, a woman who carries an altered gene for X-linked recessive has a 50 percent chance of having sons who are affected and a 50 percent chance of having daughters who carry one copy of the altered gene.