BCECE Engineering BCECE Engineering Solved Paper-2012

  • question_answer
    Which one of the following is correct about H-bonding in nucleotide?

    A) \[A-T,G-C\]        

    B)  \[A-G,T-C\]

    C)         \[G-T,A-C\]       

    D)  \[A-A,T-T\]

    Correct Answer: A

    Solution :

    The structure of DNA molecule is a double helicle structure. In this structure double helix are made up of polynucleotide chains which are held together by H-bonds. In these helixes the adenine  (A) base is linked with thymine (T) by two H-bonds and guanine (G) is linked with cytocine (C) by three H-bonds as A = T, and \[G\equiv C.\]


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