Question

What will be the condition of the progeny if the father is normal, while the mother has one gene for haemophilia and one gene for colour blindness on one of the X chromosomes?

Options :

  1. Only daughters are haemophilic and colour blind

  2. Both sons and daughters will be haemophilic and colour blind

  3. 50 per cent haemophilic and colour blind sons and 50% normal sons

  4. 0 per cent haemophilic colour blind daughters and 50% colour blind daughters

Show Answer

Answer :

50 per cent haemophilic and colour blind sons and 50% normal sons

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