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Dominant Traits

If a normal m...

Question

If a normal man marries a woman who is carrier for haemophilia, then what is the probability that their son will be haemophilic?

A

25%

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B

50%

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C

75%

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D

100%

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Solution

The correct option is B 50%
It is evident from the above cross that the probability of having a haemophilic son (XhY) is 50% as the other son will not suffer from this disorder.

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