nucleotide: Meaning and Definition of


Pronunciation: (n'klē-u-tīd", ny'-), [key]
— n. Biochem.
  1. any of a group of molecules that, when linked together, form the building blocks of DNA or RNA: composed of a phosphate group, the bases adenine, cytosine, guanosine, and thymine, and a pentose sugar, in RNA the thymine base being replaced by uracil.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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