Which base pairs with Cytosine?

Study for the Genetics and Molecular Biology Exam. Engage with flashcards and multiple choice questions. Ace your exam with comprehensive practice and detailed explanations!

Multiple Choice

Which base pairs with Cytosine?

Explanation:
Base pairing is governed by specific hydrogen-bonding patterns that give complementary strands a uniform width. Cytosine forms three hydrogen bonds with guanine, and their shapes fit together in the DNA double helix, making guanine the correct partner for cytosine. Adenine pairs with thymine in DNA (two hydrogen bonds) or with uracil in RNA, so cytosine does not pair with adenine, thymine, or uracil. This selective pairing underpins accurate replication and the genetic code.

Base pairing is governed by specific hydrogen-bonding patterns that give complementary strands a uniform width. Cytosine forms three hydrogen bonds with guanine, and their shapes fit together in the DNA double helix, making guanine the correct partner for cytosine. Adenine pairs with thymine in DNA (two hydrogen bonds) or with uracil in RNA, so cytosine does not pair with adenine, thymine, or uracil. This selective pairing underpins accurate replication and the genetic code.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy