DUMET Medical DUMET Medical Solved Paper-2001

  • question_answer
    In DNA helix cytosine is paired with guanine by:

    A) covalent bond 

    B)  phosphate bond

    C)  two \[{{H}_{2}}\] bonds  

    D)  three \[{{H}_{2}}\] bonds

    Correct Answer: D

    Solution :

    In DNA helix cytosine is paired with guanine by three hydrogen bonds (G=C) whereas the adenine, thymine is held together by two hydrogen bonds (A= T).


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