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AFMC AFMC Solved Paper-2005

  • question_answer
    Number of chromosomes in Down?s syndrome is :

    A)  46                                         

    B)  47

    C)  48                                         

    D)  49

    Correct Answer: B

    Solution :

                     Down?s syndrome is due to the trisomy of 21st pair of autosome. Therefore, a Down?s syndrome patient has 47 chromosome i.e., 45 A + XX/XY.


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