what is the best evidence to prove that irene was heterozygous for hemophilia?\nelizabeth is not a carrier…
what is the best evidence to prove that irene was heterozygous for hemophilia?\nelizabeth is not a carrier for the trait.\ntatiana carried the recessive allele.\nher brother has hemophilia and her sister is a carrier.\ntwo of her sons have hemophilia and one does not.
Answer
Brief Explanations:
In genetics, if a mother has some sons with a recessive - linked disorder (like hemophilia) and some without, it indicates she is heterozygous. This is because she can pass on either the normal or the mutant allele. If Irene has two sons with hemophilia and one without, it shows she has both the normal and the mutant allele for hemophilia.
Answer:
Two of her sons have hemophilia and one does not.