Which one of the following genetic diseases is sex-linked?
- (a)Royal haemophilia
- (b)Tay Sachs disease
- (c)Cystic fibrosis
- (d)Hypertension
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Official answer(a) Royal haemophilia
Official answer(a) Royal haemophilia
Official answer(c) 1 and 2 only
Official answer(b) 2 and 3 only
Official answer(d) I, II and III
Official answer(a) Collecting DNA samples from air in a habitat at one go
Official answer(a) Studying the evolutionary relationships among various species of fauna
Official answer(d) 2 and 3