Pyrimidines in DNA are:

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 $9.99Unlock all

Prepare for the Campbell Biology Concepts and Connections test. Hone your skills with multiple choice questions, flashcards, hints, and thorough explanations. Ace your exam effortlessly!

Multiple Choice

Pyrimidines in DNA are:

Explanation:
Pyrimidines are one-ring nitrogenous bases. In DNA, the bases that have this single-ring structure are cytosine and thymine. The other bases, adenine and guanine, are purines with two rings. This distinction explains the pairing pattern you learn in DNA—cytosine pairs with guanine, and thymine pairs with adenine—through specific hydrogen bonds. It’s also useful to remember that thymine is unique to DNA, while RNA uses uracil instead of thymine.

Pyrimidines are one-ring nitrogenous bases. In DNA, the bases that have this single-ring structure are cytosine and thymine. The other bases, adenine and guanine, are purines with two rings. This distinction explains the pairing pattern you learn in DNA—cytosine pairs with guanine, and thymine pairs with adenine—through specific hydrogen bonds. It’s also useful to remember that thymine is unique to DNA, while RNA uses uracil instead of thymine.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy