36.The gene for Haemophilia is located on ‘X’ chromosome. Hence, it is normally impossible for a A. Haemophilic father to pass the gene to his daughter B. Carrier mother to pass the gene to her daughter C. Carrier mother to pass the gene to her son D. Haemophilic father to pass the gene to his son
Option D Haemophilia is a X-linked recessive disorder in which person do not produce clotting factor. Female have XX chromosome in which one X is affected and one X is normal. When she inherit affected X chromosome she has second normal chromosome which compensates the haemophilic gene and thus, called as a carrier. But haemophilic father (XY) inherit haemophilia to all his daughter because she carries one X from father and one from mother whereas none of his sons will be affected because he carries only Y chromosome from his father
