Definitions for "nucleotide"
a phosphate ester of a nucleoside; one of the monomeric components of DNA or RNA.
The fundamental unit of nucleic acids. A nucleotide consists of a nitrogen-containing base attached to a pentose monosaccharide with one, two, or three phosphate groups attached by ester linkages to the saccharide moiety.
unit building block of DNA. It consists of a sugar and phosphate backbone with a base attached.
Keywords:  omnivore, organelle, organism
omnivore organelle organism
Keywords:  codon, genetic, letter, block, three
a single "letter" of the genetic code, each block of three is called a codon
Keywords:  gene, basic, unit
the basic unit of a gene