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A woman whose father was hemophilic, but who is not herself a bleeder marries a normal...

  1. A woman whose father was hemophilic, but who is not herself a bleeder marries a normal man. What is the chance of hemophilia in their children? What is the chance of hemophilia in the sons of one of their daughters if the daughter marries a non-hemophilic man man?

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Answer #1

As mentioned in the question that woman father was haemophilic but she herself is not bleeder it means that she is a carrier. The cross is shown below:-25% or 1/4 of their children will be haemophilic and 25% will be carriers.

We can also say that 50% of sons will be haemophilic and 50% of daughter will be carrier.

When the non haemophilic daughter marries a non haemophilic man all the offspring will be normal.

When the carrier daughter marries a non haemophilic man 50% of their son will be haemophilic. You can refer to the following cross:-

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