A woman with two genes (one on each X -chromosome) for haemophilia and one gene for colour blindness on the X-chromosome marries a normal man. How will the progeny be?
- AAll sons and daughters are haemophilic and colourblind
- BHaemophilic and colourblind daughters
- C50 \% haemophilic colourblind sons and 50 \% haemophilic sons
- D50 \% haemophilic daughters and 50 \% colourblind daughters
✓ Correct answer: C
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