In RNA, which base pairs with adenine?

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Study with the DAT Bootcamp Molecules and Fundamentals of Biology test. Use flashcards and multiple choice questions with hints and explanations to prepare effectively.

Multiple Choice

In RNA, which base pairs with adenine?

Explanation:
RNA base pairing uses complementary pairs: adenine with uracil and guanine with cytosine. Adenine pairs with uracil because their hydrogen-bonding patterns fit together to form a stable two-bond interaction, and uracil replaces thymine in RNA. This pairing is distinct from guanine–cytosine, which forms three hydrogen bonds, and from any pairing of adenine with cytosine or guanine. So the base that pairs with adenine in RNA is uracil.

RNA base pairing uses complementary pairs: adenine with uracil and guanine with cytosine. Adenine pairs with uracil because their hydrogen-bonding patterns fit together to form a stable two-bond interaction, and uracil replaces thymine in RNA. This pairing is distinct from guanine–cytosine, which forms three hydrogen bonds, and from any pairing of adenine with cytosine or guanine. So the base that pairs with adenine in RNA is uracil.

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