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NEET Biology Principle Of Inheritance And Variation Question Bank Multiple Allelism

  • question_answer
    Parents of blood groups O and AB cannot have a child of group AB because [MP PMT 1992]

    A) Gene O is dominant over gene A

    B) Gene O is dominant over gene B

    C) Gene A or B is absent in one of the parents

    D) Gene A and B are absent in one of the parents

    Correct Answer: D

    Solution :

    Hetrozygous IA/IB individual are blood group AB. Both the A antigen (Product of the IA alleles) and the B antigen (Product of the IB alleles) are produced by them.


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