Haemophilia is more commonly seen in human males than in

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Haemophilia is more commonly seen in human males than in human females because:

1. a greater proportion of girls die in infancy
2. this disease is due to a Y-linked recessive mutation
3. this disease is due to an X-linked recessive mutation
4. this disease is due to an X-linked dominant mutation

Correct Option: C

This disease is due to an X-linked recessive mutation. Males suffer this disorder since they have only one X chromosome and hence express any trait on this chromosome.