In DNA base pairing, which base pairs with Cytosine?

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

Study for the Genetics and Molecular Biology Exam. Prepare using flashcards and multiple choice questions with detailed hints and explanations. Elevate your test readiness!

Multiple Choice

In DNA base pairing, which base pairs with Cytosine?

Explanation:
In DNA, bases pair in a way that keeps the double helix width uniform, with a pyrimidine pairing with a purine. Cytosine is a pyrimidine, so it pairs with Guanine, a purine, forming three hydrogen bonds. That stronger C–G pairing helps stabilize regions rich in GC content. By contrast, Adenine pairs with Thymine in DNA (two hydrogen bonds), and in RNA, Uracil pairs with Adenine. So the partner for Cytosine in DNA is Guanine.

In DNA, bases pair in a way that keeps the double helix width uniform, with a pyrimidine pairing with a purine. Cytosine is a pyrimidine, so it pairs with Guanine, a purine, forming three hydrogen bonds. That stronger C–G pairing helps stabilize regions rich in GC content. By contrast, Adenine pairs with Thymine in DNA (two hydrogen bonds), and in RNA, Uracil pairs with Adenine. So the partner for Cytosine in DNA is Guanine.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy