Memotiva AP Biology Unit 1 Topic 1.6: Nucleic Acids — DNA, RNA, Nucleotide Structure and the Double Helix

What are the three components of a nucleotide?

AP Biology Unit 1 Topic 1.6: Nucleic Acids — DNA, RNA, Nucleotide Structure and the Double Helix

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Nortren·April 11, 2026

What are the three components of a nucleotide?

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Every nucleotide has three parts: a five-carbon sugar, a phosphate group, and a nitrogenous base. In DNA the sugar is deoxyribose, while in RNA it is ribose. The base can be one of five types: adenine, guanine, cytosine, thymine, or uracil.