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Bio 102 - Quiz #1 Review

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Question:

How are purines distinguished from pyrimidines?

Author: Incredible Snipe



Answer:

Purines are derived from a pair of fused C-N rings, while pyrimidines are derived from a single C-N ring.


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Alternative answers:

Purines have a carbon-containing ring, while pyrimidines have a nitrogenous ring.
Pyrimidines have a carbon-containing ring, while purines have a nitrogenous ring
Purines are found only in DNA, while pyrimidines are found only in RNA.
Pyrimidines are derived from a pair of fused C-N rings, while purines are derived from a single C-N ring.