Asked by Elina

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

I don't know how to do this please help!
Answered by PsyDAG
The gene for hemophilia is sex-linked, a recessive on the X-chromosome. The daughter must have both Xs with the gene, while the son does not have the gene on his X chromosome.

With that information, you should be able to get the parental genotypes.
Answered by Anonymous -Don't even think about it
#its7thgradeElina
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