Consider the structures of adenine, cytosine, thymine, and
Chapter 17, Problem 51QP(choose chapter or problem)
Problem 51QP
Consider the structures of adenine, cytosine, thymine, and guanine. On the basis of hydrogen-bonding interactions between all possible combinations of these bases, explain why the only pairings found in DNA are between adenine and thymine and between cytosine and guanine.
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