NEET Sample Paper NEET Sample Test Paper-19

  • question_answer 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?                           

    A)  1                    

    B)  Nil           

    C)  0.25                            

    D)  0.5          

    Correct Answer: C

    Solution :

    The daughters of this couple will have normal eye sight and carrier, if one of the carrier daughters marries a normal eyed man. Only 25 per cent of the grand son will be colour-blind. Hence, the correct option is [c].

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