Which base replaces thymine in RNA and bonds with adenine?

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 your Biological Anthropology Exam 1. Study with detailed explanations and multiple choice questions to enhance your understanding. Excel in your exam with our tailored practice quizzes!

Multiple Choice

Which base replaces thymine in RNA and bonds with adenine?

Explanation:
In RNA, thymine is replaced by uracil, which pairs with adenine. Uracil serves the same pairing role as thymine in DNA, forming two hydrogen bonds with adenine to help stabilize the RNA structure during processes like transcription. Uracil is used in RNA specifically, whereas thymine is characteristic of DNA. Cytosine pairs with guanine, not adenine, so it doesn’t bond with adenine. Adenine can pair with thymine in DNA, but in RNA the pairing partner is uracil.

In RNA, thymine is replaced by uracil, which pairs with adenine. Uracil serves the same pairing role as thymine in DNA, forming two hydrogen bonds with adenine to help stabilize the RNA structure during processes like transcription. Uracil is used in RNA specifically, whereas thymine is characteristic of DNA. Cytosine pairs with guanine, not adenine, so it doesn’t bond with adenine. Adenine can pair with thymine in DNA, but in RNA the pairing partner is uracil.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy