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Every DNA strand has an EQUAL number of adenine and thymine nucleotides in a molecule. Explain why.
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Every DNA strand has an EQUAL number of adenine and thymine nucleotides in a molecule. Explain why.

User Ahn
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Explanation: In other words, adenine and thymine are complementary base pairs, and cytosine and guanine are also complementary base pairs. This is the basis for Chargaff's rule; because of their complementarity, there is as much adenine as thymine in a DNA molecule and as much guanine as cytosine.

User Bet
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