Question

state what are purines and pyrimidines​

Answer 1

THE ANSWER IS:-

Purines and pyrimidines are the nitrogen bases that hold DNA strands together through hydrogen bonds. ... The purines in DNA are adenine and guanine, the same as in RNA. The pyrimidines in DNA are cytosine and thymine; in RNA, they are cytosine and uracil.

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Answer 2

Explanation:

Purines (adenine and guanine) are two-carbon nitrogen ring bases while pyrimidines (cytosine and thymine) are one-carbon nitrogen ring bases.

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