Plasmids contain an origin of replication allowing them to replicate inside a bacterium independently of the host chromosome .
Plasmids are generally 2 to 4 kilobase - pairs ( kb ) in length and are capable of carrying inserts up to 15kb .
kilobase - pairs contain an origin of replication allowing Plasmids to replicate inside a bacterium independently of the host chromosome .
Plasmids are generally 2 to 4 kilobase - pairs ( kb ) in length and are capable of carrying inserts up to 15kb .