Uracil replaces thymine in which nucleic acid?

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 Biological Anthropology Exam. Utilize flashcards and multiple choice questions, each with hints and explanations. Get ready for your test!

Multiple Choice

Uracil replaces thymine in which nucleic acid?

Explanation:
Uracil replaces thymine in RNA. RNA contains adenine, guanine, cytosine, and uracil, while DNA uses thymine instead of uracil. This difference aligns with RNA’s structure and role (ribose sugar and typically single-stranded) and with thymine’s greater chemical stability (thymine is basically methylated uracil) that suits DNA’s role in long-term genetic storage. Proteins and carbohydrates are not nucleic acids, so they don’t contain these bases.

Uracil replaces thymine in RNA. RNA contains adenine, guanine, cytosine, and uracil, while DNA uses thymine instead of uracil. This difference aligns with RNA’s structure and role (ribose sugar and typically single-stranded) and with thymine’s greater chemical stability (thymine is basically methylated uracil) that suits DNA’s role in long-term genetic storage. Proteins and carbohydrates are not nucleic acids, so they don’t contain these bases.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy