di-deoxynucleotide

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Food Biotechnology

(Abbreviations: ddNTP,didN). A synthetic deoxynucleotide that lacks a 3'-hydroxyl group, and is thus unable to form the 3'?5' phosphodiester bond necessary for chain elongation. Used as strand terminators in the Sanger DNA sequencing reaction and in the treatment of some viral diseases.

UN Food and Agriculture Organization — Glossary of Biotechnology for Food and Agriculture