Question

Hemophilia is a serious bleeding disorder caused by a sex-linked recessive allele. What are the chances of a normal male and a female who is a carrier for hemophilia having a child with hemophilia?

0%
1/4 or 25%
1/2 or 50%
3/4 or 75%

Answer 1

50%

Step-by-step explanation:

the sex linked trait is to the x chromosome but only one. that means the female would pass 50% the allele 50% of the time

Answer 2

‼️A) 1/4 25% Chance‼️

Step-by-step explanation:

If she gets the X chromosome with the hemophilia gene, she will have hemophilia. A man who has hemophilia and a woman who is a carrier have: a 25% (one in four) chance of having a son with hemophilia.