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JCECE Medical JCECE Medical Solved Paper-2010

  • question_answer
    In man, four phenotypes of blood groups are due to the presence of antigen-A and  antigen-B on the RBC. The chromosome that has the gene to control these antigens is

    A)  X-chromosome

    B)  21st  chromosome

    C)  9th  chromosome

    D)  7th  chromosome

    Correct Answer: C

    Solution :

     A set of three multiple alleles present on chromosome number 9 is responsible for the four blood groups.


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