All Are Characteristic of Plasmids EXCEPT

Multiple Choice

All are characteristic of plasmids EXCEPT:

A) naturally occurring, circular extrachromosomal DNA.
B) able to perpetuate themselves without a host organism.
C) artificial plasmids can be constructed by restriction endonuclease digestion, insertion, and ligation.
D) harbor genes for novel metabolic activities.
E) an origin of replication must be included in the plasmid to facilitate propagation.