An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > genetics > molecular genetics > nucleic acids > DNA
Research, Technology, Methods > chemical substances > biochemical compounds > nucleic acids, nucleosides and nucleotides > nucleic acids > DNA
Fields of Study > biochemistry > biochemical compounds > nucleic acids, nucleosides and nucleotides > nucleic acids > DNA
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:
NALT Full
NALT Core
Broader Concept:
nucleic acids
Narrower Concepts:
Related Concepts:
Entry Terms:
  • deoxyribonucleic acid
  • double-stranded DNA
URI:
https://lod.nal.usda.gov/nalt/1560
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2020-01-21
Exactly Matching Concepts: