Replication Origin
Synonyms
Origin of Replication
Origin, Replication
Origins, Replication
Region, ori
Regions, ori
Replication Origins
ori Region
ori Regions
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. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)