Dideoxynucleotide

From Biology-Online Dictionary | Biology-Online Dictionary

Dideoxynucleotide

(Science: biochemistry) a deoxynucleotide that lacks a 3' hydroxyl group, and is thus unable to form a 3'-5' phosphodiester bond necessary for chain elongation. Dideoxynucleotides are used in dna sequencing and the treatment of viral diseases.