While plasmid replication is not tied to chromosomal replication, many of the proteins used for plasmid replication are host enzymes. each plasmid contains its own origin of replication (ori) and only the few genes needed for replication. which of the following proteins is needed for the rolling-circle mechanism of plasmid replication and is encoded by a plasmid gene?

choose one:
a. dna polymerase iii (pol iii)
b. dna ligase
c. repa
d. parc