A nitrogenous base that pairs with adenine. Found only in DNA.

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Multiple Choice

A nitrogenous base that pairs with adenine. Found only in DNA.

Explanation:
In DNA, adenine pairs with thymine through two hydrogen bonds, forming part of the DNA double helix. Thymine is a base found only in DNA (in RNA, thymine is replaced by uracil, which pairs with adenine). So the nitrogenous base that pairs with adenine and is found exclusively in DNA is thymine.

In DNA, adenine pairs with thymine through two hydrogen bonds, forming part of the DNA double helix. Thymine is a base found only in DNA (in RNA, thymine is replaced by uracil, which pairs with adenine). So the nitrogenous base that pairs with adenine and is found exclusively in DNA is thymine.

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