In RNA, which base pairs with adenine?

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Study for the Biochemistry Module 6 Exam. Study with flashcards and multiple choice questions; each question includes hints and explanations. Gear up to ace your test!

Multiple Choice

In RNA, which base pairs with adenine?

Explanation:
In RNA, adenine pairs with uracil, not thymine. RNA uses uracil instead of thymine, and adenine forms two hydrogen bonds with uracil, providing a stable A–U pairing just as A pairs with T in DNA. Cytosine pairs with guanine, and thymine is a DNA base that doesn’t partner with adenine in RNA. So the correct partner for adenine in RNA is uracil.

In RNA, adenine pairs with uracil, not thymine. RNA uses uracil instead of thymine, and adenine forms two hydrogen bonds with uracil, providing a stable A–U pairing just as A pairs with T in DNA. Cytosine pairs with guanine, and thymine is a DNA base that doesn’t partner with adenine in RNA. So the correct partner for adenine in RNA is uracil.

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