Which base pairs with adenine in DNA?
Answer and explanation
Correct answer: A. Thymine, joined to adenine by two hydrogen bonds
- Step 1: DNA pairs follow the rule A with T and G with C. Step 2. Adenine and thymine share two hydrogen bonds; guanine and cytosine share three. Answer: thymine. Why not the others: Cytosine and guanine are paired with each other; uracil replaces thymine only in RNA.
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