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olya-2409 [2.1K]
3 years ago
14

The nitrogenous bases cytosine and thymine are

Chemistry
1 answer:
mr_godi [17]3 years ago
7 0
Purines are adenine and guanine. So the answer should be D (Pyrimidines). besides, phosphate group and pentose sugar are a part of a nucleotide.
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