Purine base that bonds with thymine or uracil.

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

Explore Biological Anthropology Exam 1 with practice quizzes. Challenge yourself with interactive questions and detailed explanations. Enhance your understanding and prepare effectively for your exam!

Multiple Choice

Purine base that bonds with thymine or uracil.

Explanation:
Adenine is the purine base that pairs with thymine in DNA and with uracil in RNA, using two hydrogen bonds. Purines are the larger, two-ring bases, and they fit specifically with the smaller pyrimidines—thymine or uracil—in a complementary fashion that preserves the DNA/RNA structure. That’s why adenine is the base that bonds with thymine or uracil. The other bases don’t fit this pairing pattern: guanine is a purine that pairs with cytosine, while cytosine and thymine are pyrimidines that pair with their respective purine partners.

Adenine is the purine base that pairs with thymine in DNA and with uracil in RNA, using two hydrogen bonds. Purines are the larger, two-ring bases, and they fit specifically with the smaller pyrimidines—thymine or uracil—in a complementary fashion that preserves the DNA/RNA structure. That’s why adenine is the base that bonds with thymine or uracil. The other bases don’t fit this pairing pattern: guanine is a purine that pairs with cytosine, while cytosine and thymine are pyrimidines that pair with their respective purine partners.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy