How Are Purines Distinguished from Pyrimidines

question 42

Multiple Choice

How are purines distinguished from pyrimidines?

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

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Definitions:

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Balance Sheet

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