Nucleotide

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This editable Main Article is under development and subject to a disclaimer.

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In biology, nucleotides are "the monomeric units from which DNA or RNA polymers are constructed. They consist of a purine or pyrimidine base, a pentose sugar, and a phosphate group."[1]

A nucleotide is a nucleoside (a purine or pyrimidine base plus a pentose sugar) with a phosphate group added.

## References[edit]

1. ↑ Anonymous (2025), Nucleotide (English). Medical Subject Headings. U.S. National Library of Medicine.