A couple has just learned that their daughter has hemophilia. they already have a son who does not have a disease. What are the

Question

fredd [130]

3 years ago

7

A couple has just learned that their daughter has hemophilia. they already have a son who does not have a disease. What are the

genotypes of the couple? Explain your reasoning in full sentences
HELP PLEASE!!

Biology

1 answer:

kolbaska11 [484] · Answer 1 · 2022-09-02T02:33:03+03:00

Hemophilia is an X-linked recessive disorder. Since the daughter inherits one copy of X chromosome from each of her parents, and with hemophilia being a recessive disease, the daughter must inherit both copies of recessive hemophilic gene.

X-linked hemophilic gene: X₀
Genotype of mother: X₀X
Genotype of father: X₀Y

Genotype of daugher: X₀X₀