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A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?
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- 1
- Nil
- 0.25
- 0.5
Correct Option: C
The daughters of this couple will have normal eye sight and carrier if one of the carrier daughter marries with normal eyed man.
Only 25% g randson will show colourblindness.
