In DNA, which base pairs with adenine?

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Multiple Choice

In DNA, which base pairs with adenine?

Explanation:
In DNA, base pairing is complementary: adenine always pairs with thymine, while cytosine pairs with guanine. Adenine and thymine form two hydrogen bonds, which helps keep the DNA double helix properly spaced and stable. Cytosine and guanine form a stronger pair with three hydrogen bonds. Uracil appears in RNA and substitutes for thymine there, so it does not pair with adenine in DNA. Therefore, the base that pairs with adenine in DNA is thymine.

In DNA, base pairing is complementary: adenine always pairs with thymine, while cytosine pairs with guanine. Adenine and thymine form two hydrogen bonds, which helps keep the DNA double helix properly spaced and stable. Cytosine and guanine form a stronger pair with three hydrogen bonds. Uracil appears in RNA and substitutes for thymine there, so it does not pair with adenine in DNA. Therefore, the base that pairs with adenine in DNA is thymine.

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