Which is a purine?

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Study for the DAT Bootcamp Molecular Genetics Test. Enhance your knowledge with flashcards and multiple-choice questions, each offering hints and explanations. Prepare effectively for your exam!

Multiple Choice

Which is a purine?

Explanation:
Purines and pyrimidines are two families of nitrogenous bases distinguished by ring structure. Purines have a two-ring system, while pyrimidines have a single ring. Adenine is part of the purine family, along with guanine. Cytosine, thymine, and uracil are pyrimidines. So, the base that is a purine is adenine. (In DNA and RNA, purines pair with pyrimidines—A with T in DNA and A with U in RNA; G with C in both.)

Purines and pyrimidines are two families of nitrogenous bases distinguished by ring structure. Purines have a two-ring system, while pyrimidines have a single ring. Adenine is part of the purine family, along with guanine. Cytosine, thymine, and uracil are pyrimidines. So, the base that is a purine is adenine. (In DNA and RNA, purines pair with pyrimidines—A with T in DNA and A with U in RNA; G with C in both.)

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