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07/10/2021 7:52 pm
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A woman with two genes for haemophilia and a gene for colour blindness on one of the 'X' chromosomes marries a normal man. How will the progeny be
(1) 50% haemophilic daughters and 50% colour-blind daughters
(2) haemophilic and colour-blind daughters
(3) All sons and daughters haemophilic and colour-blind
(4) 50% haemophilic, colour-blind sons and 50% haemophilic sons
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07/10/2021 7:54 pm
Correct answer: (4) 50% haemophilic, colour-blind sons and 50% haemophilic sons