In DNA, adenine pairs with which base?

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Prepare for your College Biology Exam 1 with flashcards and multiple choice questions. Test your understanding with detailed explanations and hints to ensure success in your biology exam!

Multiple Choice

In DNA, adenine pairs with which base?

Explanation:
DNA base pairing follows specific pairs: adenine pairs with thymine, and cytosine pairs with guanine. Adenine forms two hydrogen bonds with thymine, which is why thymine is the correct partner. The other pairings are cytosine with guanine (three hydrogen bonds). In RNA, thymine is replaced by uracil, so adenine pairs with uracil there.

DNA base pairing follows specific pairs: adenine pairs with thymine, and cytosine pairs with guanine. Adenine forms two hydrogen bonds with thymine, which is why thymine is the correct partner. The other pairings are cytosine with guanine (three hydrogen bonds). In RNA, thymine is replaced by uracil, so adenine pairs with uracil there.

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