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  1. The number of hydrogen bonds between guanine and cytosine in DNA is

    2. A.

     2
    B.

     3
    C.

     4
    D.

     1

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    Answer : Option B

    Explanation :

    There are two hydrogen bonds between adenine and thymine (A=T) and three hydrogen bonds between cytosine and guanine (G=C).

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