Question

Hemophilia has an X-linked recessive pattern. It is carried on the 'X' chromosome. It is only expressed phenotypically as homozygous recessive in women but men that inherit the affected chromosome will suffer from the disorder. A carrier female (one with an affected X chromosome) married a man with hemophilia, and they have children. What percent of their male children will be affected by hemophilia?

Answer 1

Answer: 25 %

Explanation:

25 percent (25 %) of their male children will be affected by hemophilia because when you cross link, the mother has only one of her X chromosome affected.