DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    Absence of one sex chromosome causes

    A)  Turners syndrome

    B)  Klinefelters syndrome

    C)  Downs syndrome

    D)  Tay-Sachs syndrome

    Correct Answer: A

    Solution :

    Turners syndrome is due to monosomy\[(2n-1)\] and the chromosome constituent is\[44+XO=45\]. The individual is female with under developed ovary, webbed neck. Klinefelters syndrome is due to condition of\[44+XXY=47\]. The sex is male but have secondary sexual characters like female. Downs syndrome is due to trisomy of 21st chromosome.


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