Which four bases are found in DNA?

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Multiple Choice

Which four bases are found in DNA?

Explanation:
DNA is built from four nitrogenous bases: adenine, thymine, guanine, and cytosine. These bases pair specifically A with T and G with C, forming the rungs of the double helix. Thymine is a feature of DNA; in RNA, uracil replaces thymine. So a choice that lists uracil describes RNA, not DNA. Another option includes methionine, which is an amino acid, not a DNA base.

DNA is built from four nitrogenous bases: adenine, thymine, guanine, and cytosine. These bases pair specifically A with T and G with C, forming the rungs of the double helix. Thymine is a feature of DNA; in RNA, uracil replaces thymine. So a choice that lists uracil describes RNA, not DNA. Another option includes methionine, which is an amino acid, not a DNA base.

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