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.

Concept Breadcrumbs

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:
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