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Question : A DNA fragment possesses 32 adenine bases and 32 cytosine bases. How many total number of nucleotides does that DNA fragment contains? Explain.

Answer»

Solution :128 nucleotides. Adenine ALWAYS pair THYMINE base.
If there are 32 adenine bases then there must be 32 Thymine bases. SIMILARLY cytosine pairs with GUANINE. If cytosine bases are 32 in number the guanine bases will be equal to cytosine. So it make a total of 128 nucleotides.


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