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expeople1 [14]
3 years ago
14

How do the structure of adenine and

Biology
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0
Adenine forms two hydrogen bonds with thymine in DNA while three hydrogen bonds are formed between guanine and cytosine.

Thymine and cytosine are pyrimidines because they have a single ring structure. Adenine and guanine are purines because they have a double ring structure.
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