Question

Hemophilia A is an X-linked recessive disease. If a mother without the disease and a father without the disease have one son diagnosed with hemophilia, what is the probability that a future daughter they have together will also be afflicted with hemophilia?

Answer 1

The answer is 0% bc it is a recessive disease

Answer 2

Answer:

there is no probability of complete affected daughter.

Explanation:

Hemophilia A is a rare X- linked disease. it is a recessive trait so only affects females when present in both X chromosomes, however, in males, there is only one x chromosome present and its enough to affect the individual.

As stated in the question that one son diagnosed affected, it is only possible when the mother is a carrier for this disease, and if the mother is a carrier then the daughter will be carrier too as it is X-linked recessive trait. So the probability of daughter with hemophilia A is none but could be a carrier.