Cytosine pairs with which base?

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Multiple Choice

Cytosine pairs with which base?

Explanation:
Cytosine pairs with guanine because base pairing follows specific hydrogen-bonding rules that fit the shapes of the bases. Cytosine is a pyrimidine and forms hydrogen bonds with guanine, a purine, creating three hydrogen bonds that help stabilize the DNA double helix. This pairing is complementary to the others: adenine pairs with thymine in DNA (or with uracil in RNA), not cytosine. So the base that pairs with cytosine is guanine.

Cytosine pairs with guanine because base pairing follows specific hydrogen-bonding rules that fit the shapes of the bases. Cytosine is a pyrimidine and forms hydrogen bonds with guanine, a purine, creating three hydrogen bonds that help stabilize the DNA double helix. This pairing is complementary to the others: adenine pairs with thymine in DNA (or with uracil in RNA), not cytosine. So the base that pairs with cytosine is guanine.

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