Question

A non hemophiliac father and a hemophiliac mother have a son what is the percentage chance that the son will be hemophiliac?​

Answer 1

50%

Step-by-step explanation:

He will have hemophilia if he inherits his mother's X chromosome with the hemophilia gene. He will have normal blood coagulation if he receives his mother's other X chromosome. So a carrier's son has a 50% risk of inheriting hemophilia. Each son has a 50% risk of having hemophilia. Each daughter has a 50% chance of inheriting the hemophilia gene. Each daughter has a 50% risk of having hemophilia.