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Hemophilia has been identified as a X linked recessive trait. If a man with hemophilia (Xh,Y) has children with a woman who is a carrier of the trait (X,Xh) but does not have it herself. What is the
probability that their children will suffer from hemophilia?

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Answer:

50%

Explanation:

If you draw out a punnet square you'll see that theres a 50% chance of their children inheriting hemophilia.

                                      Xh                      Y

                 X             X Xh                  X  Y

                 Xh            Xh Xh                Xh Y

The bolded intersections would be those who inherit hemophilia, and the underlined is a female carrier.

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