In humans, hemophilia is caused by an X-linked recessive gene. A woman who is a nonbleeder - that is, she does not display the blood-clotting irregularities associated with hemophilia - had a father who was a hemophiliac.

She marries a nonbleeder, and they plan to have children.

Calculate the probability of hemophilia in the female and male offspring.

one normal girl

One normal boy

One carrier girl

One colour blind boy

Explanation:

Haemophilia is a sex linked feature as it is transmitted with the chromosomes determining sex.

In humans, the male has XY and the female has XX. the Y chromosome is usually genetically empty. so as mall received his Y chromosomes from his father, he cannot inherit his father's sex linked traits. but women can as they receive and X chromosomes from their fathers. so a cross between a carrier woman Cc and a normal man C result in;

XX--CC

XX--Cc

XY--C

XY--c