Hemophilia is a sex-linked disorder if a woman is a carrier


Question: Hemophilia is a sex-linked disorder. If a woman is a carrier for hemophilia, and marries a man who does not have the disease, and they have 4 children, 2 girls and 2 boys, what is the probability of the following? Show your work using a Punnett square

A) Both girls have the disease?

B) At least one of the sons does not have the disease?

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Biology: Hemophilia is a sex-linked disorder if a woman is a carrier
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