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20. rna nucleotides are classified as purines or pyrimidines. the purin…

Question

  1. rna nucleotides are classified as purines or pyrimidines. the purines are a. adenine and guanine b. thymine and cytosine c. guanine and uracil d. cytosine and uracil e. none of these are correct

Explanation:

Brief Explanations

In RNA, the purine nucleotides are adenine and guanine. Thymine is not present in RNA (uracil replaces it), and cytosine, uracil are pyrimidines.

Answer:

a. Adenine and guanine