In DNA, the complementory bases are
In DNA, the complementory bases are
A. adenine and thymine, guanine and cytosine
B. uracil and adenine, cytosine and guanine
C. adenine and guanine, thymine and cytosine
D. adenine and thymine, guanine and uracil
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Correct Answer - A
DNA has a double helical structure. These helix contains polynucleotides chain and these chains are held together by hydrogen bonds . In these polynucleotide chain of DNA , adenine has thymine opposite to it and guanine has cytosine opposite to it.
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