Question

A woman who is a carrier of the hemophilia allele and a man that is normal for hemophilia allele have

children. What is the chance they will have a son that has hemophilia? What is the chance they have a daughter
that has hemophilia?
50%, 0%
50%, 50%
0%, 50%
100% have hemophilia

Answer 1

the chance they will have a son that has hemophilia is 50%

the chance they have a daughter that has hemophilia is 50%

Step-by-step explanation:

H - normal allele

h - hemophilia allele

A woman who is a carrier of the hemophilia allele - X(H)X(h)

A man that is normal for hemophilia allele - X(h)Y

Punnet Square:

1. X(H)X(h) - Daughter
2. X(H)Y - Son
3. X(h)X(h) - Daughter
4. X(h)Y - Son