If a mother is a carrier of the recessive gene (Xx) for hemophilia and there is a 25% chance of having a child with hemophilia, what must the father's genotype be?

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asked Jun 22, 2021 60.4k views

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Brett Weber · Answer 1 · 2021-06-28T05:34:23+0000

Answer:If she gets the X chromosome with the hemophilia gene she will be a carrier. So a carrier's daughter has a 50% chance of being a carrier. A woman who is a carrier has: a 25% (one in four) chance of having a daughter who is a carrier.

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If a mother is a carrier of the recessive gene (Xx) for hemophilia and there is a 25% chance of having a child with hemophilia, what must the father's genotype be?

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