Answer :

Final answer:

Cytosine is a pyrimidine base found in DNA and RNA, forming hydrogen bonds with guanine.


Explanation:

Cytosine is a pyrimidine base found in DNA and RNA. It forms three hydrogen bonds with guanine in Watson-Crick base pairing. The nucleoside of cytosine is cytidine.


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https://brainly.com/question/18979173


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