Purines are which bases?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the Campbell Biology Concepts and Connections Test. Explore flashcards and multiple-choice questions, complete with hints and explanations. Prepare for your success!

Multiple Choice

Purines are which bases?

Explanation:
Purines are nitrogenous bases with two-ring structures. The purines present in DNA and RNA are adenine and guanine. This two-ring setup distinguishes them from pyrimidines, which have a single ring and include cytosine, thymine, and uracil. In base pairing, purines pair with pyrimidines: adenine pairs with thymine (or uracil in RNA) and guanine pairs with cytosine. So adenine and guanine are the bases that are purines.

Purines are nitrogenous bases with two-ring structures. The purines present in DNA and RNA are adenine and guanine. This two-ring setup distinguishes them from pyrimidines, which have a single ring and include cytosine, thymine, and uracil. In base pairing, purines pair with pyrimidines: adenine pairs with thymine (or uracil in RNA) and guanine pairs with cytosine. So adenine and guanine are the bases that are purines.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy