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	©
Schematic diagram of part of a DNA molecule showing a nucleotide.

(genetic biology)

Grammar: noun
plural: nucleotides
Definition: a structural component of nucleic acids, made up of a sugar, a phosphate group, and a base
Example:
1. Nucleic acids such as DNA and RNA consist of long polymers of nucleotides.

2. The production of mRNA (a process known as transcription) is initiated by a specific sequence of nucleotides in the DNA lying upstream of the gene.