If a mother is a carrier for hemophilia (XhX) and the f... – Biology

Biologymedium · Past Paper

If a mother is a carrier for hemophilia (XhX) and the father is normal (XY), what is the chance of having a hemophilic daughter?

A0%

B25%

C50%

D100%

✓ Correct Answer: A — 0%

A daughter needs two recessive alleles to be hemophilic. Since the father is normal, daughters will either be normal or carriers, not hemophilic.

Share this question