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NAL Agricultural Thesaurus
U.S. Department of Agriculture
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Concept Breadcrumbs

Fields of Study > genetics > molecular genetics > nucleotide sequences > replicon > replication origin
Preferred Term:

replication origin

Definition:
A unique DNA sequence of a replicon at which DNA replication is initiated and proceeds bidirectionally or unidirectionally. It contains the sites where the first separation of the complementary strands occurs, a primer RNA is synthesized, and the switch from primer RNA to DNA synthesis takes place.
Concept Schemes:
https://lod.nal.usda.gov/nalt-core
NALT Full
Broader Concept:
replicon
Entry Terms:
  • origin of replication
  • ori region
URI:
https://lod.nal.usda.gov/nalt/56147
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2015-09-29
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