In DNA base pairing, which base pairs with cytosine?

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Multiple Choice

In DNA base pairing, which base pairs with cytosine?

Explanation:
Cytosine pairs with guanine in DNA. They form three hydrogen bonds that hold the two strands together and keep the helix width uniform, which helps stabilize the structure. This pairing, along with adenine pairing with thymine, reflects Chargaff’s rules. So the base that pairs with cytosine is guanine. Adenine pairs with thymine, and cytosine does not pair with thymine or with another cytosine due to differences in hydrogen-bonding patterns and molecular geometry.

Cytosine pairs with guanine in DNA. They form three hydrogen bonds that hold the two strands together and keep the helix width uniform, which helps stabilize the structure. This pairing, along with adenine pairing with thymine, reflects Chargaff’s rules. So the base that pairs with cytosine is guanine. Adenine pairs with thymine, and cytosine does not pair with thymine or with another cytosine due to differences in hydrogen-bonding patterns and molecular geometry.

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