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Q. Haemophilic man marries a normal woman. Their offsprings will be

AIPMTAIPMT 1999Principles of Inheritance and Variation

Solution:

Haemophilia is a defect of blood which prevents its clotting. It is caused by a recessive gene located in the X-chromosome. When a haemophilic man (XhY) marries a normal woman (XX), produces carrier girls (XXh) and normal boys (XY), i.e. all their offsprings will be normal.

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