J & K CET Medical J & K - CET Medical Solved Paper-2013

  • question_answer
    In which of the following diseases, the man has an extra X-chromosome?

    A)  Bleeders disease

    B)  Turners syndrome

    C)  Downs syndrome

    D)  Klinefelters syndrome

    Correct Answer: D

    Solution :

     Klinefelters syndrome is an aneuploid condition in which male has an extrachromosome. In other words a condition with 3 sex chromosomes (XXY) i.e., trisomy. The genotype result from the union of a non-disjunct XX egg and a normal Y-sperm or normal X egg and abnormal XY-sperm and individual consist\[(2n+1)47\]chromosomes insteads of normal 46 chromosomes.


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