A) all the children will be normal
B) all the sons will be haemophilic
C) all the girls will be haemophilic
D) half girls will be haemophilic
Correct Answer: B
Solution :
Haemophilia is a recessive X-linked disease. A female with defected single X-chromosome is normal, but, carrier of disease and male with defected single X-chromosome is haemophilic.
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