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DUMET Medical DUMET Medical Solved Paper-2010

  • question_answer
    If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be

    A)  22.5%

    B)  27.5%

    C)  45%  

    D)  55%

    Correct Answer: B

    Solution :

    According to Chargaffs rule A+ G= T+ C \[A+G=T+C\] In the given ds- DNA, the total amount of adenine and thymine is 45%, thus, the remaining 55% will be of cytosine and guanine. Out of which, 27.5% (55/2) will be of guanine.


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