Term Name:	DNA restriction-modification system
Synonyms:	DNA restriction
Definition:	A defense process found in many bacteria and archaea that protects the organism from invading foreign DNA by cleaving it with a restriction endonuclease. The organism's own DNA is protected by methylation of a specific nucleotide, which occurs immediately following replication, in the same target site as the restriction enzyme.
Ontology:	GO: Biological Process [GO:0009307]    QuickGO    AmiGO