Which base pairs with Guanine in DNA?

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 $24.99Unlock all

Prepare for the GMAS Biology Test with multiple choice questions, detailed explanations, and innovative study techniques to excel. Boost your confidence and get ready for success!

Multiple Choice

Which base pairs with Guanine in DNA?

Explanation:
In DNA, bases pair specifically to keep the two strands the same width and stable. Guanine is a purine and pairs with cytosine, a pyrimidine, through three hydrogen bonds. This G–C pairing maintains the uniform structure of the double helix and contributes to DNA’s stability, especially in GC-rich regions. Uracil is used in RNA (replacing thymine) and pairs with adenine, while thymine pairs with adenine in DNA. So the base that pairs with guanine in DNA is cytosine.

In DNA, bases pair specifically to keep the two strands the same width and stable. Guanine is a purine and pairs with cytosine, a pyrimidine, through three hydrogen bonds. This G–C pairing maintains the uniform structure of the double helix and contributes to DNA’s stability, especially in GC-rich regions. Uracil is used in RNA (replacing thymine) and pairs with adenine, while thymine pairs with adenine in DNA. So the base that pairs with guanine in DNA is cytosine.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy