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Concept Breadcrumbs

Preferred Term:

DNA

Definition:
The chemical substance from which genes are made. DNA is a long, double-stranded helical molecule made up of nucleotides which are themselves composed of sugars, phosphates, and derivatives of the four bases adenine (A), guanine (G), cytosine (C), and thymine (T). The sequence order of the four bases in the DNA strands determines the genetic information contained.
Concept Schemes:
https://lod.nal.usda.gov/nalt
NALT Core
Broader Concept:
Entry Terms:
  • deoxyribonucleic acid
  • double-stranded DNA
URI:
https://lod.nal.usda.gov/nalt/1560
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RDF/XMLCreated 2006-01-19, last modified 2020-01-21