MHT CET Biology question

Biology Principles of Inheritance and Variation MHT CET

A women has her haemophilic brother and normal parents. She marries a man who has no history of haemophilia in his family. What is the possibility of her children having this disease?

(A)50% of the sons may be haemophilicCorrect
(B)50% of the total generation is haemophilic
(C)50% of the daughters may be haemophilic
(D)All the progeny will be haemophilic

Answer: (A)

Solution

Her brother's haemophilia shows that the mother is a carrier, so the woman may be a carrier and then half of her sons would be haemophilic;

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Question ID VK-059260