A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be

Question

A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be, X X a n d X h Y, X h X h a n d X h Y, X h X h a n d X Y, X h X a n d X Y

MARKS App · Accepted Answer

Because no other child is affected or is a carrier, it is more likely that man is normal and women is heterozygous. If the father is affected, all daughters will be carriers and if the mother is affected, all daughter will be carriers and sons will be affected.

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