nucleotide definition

  • noun:
    • some of different compounds consisting of a nucleoside along with a phosphate group and developing the essential constituent of DNA and RNA.
    • the monomer comprising DNA or RNA biopolymer particles. Each nucleotide is made from a nitrogenous heterocyclic base (or nucleobase), which may be either a double-ringed purine or a single-ringed pyrimidine; a five-carbon pentose sugar (deoxyribose in DNA or ribose in RNA); and a phosphate group.
    • a phosphate ester of a nucleoside; among the monomeric the different parts of DNA or RNA.
    • a phosphoric ester of a nucleoside; the basic structural product of nucleic acids (DNA or RNA)

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