Final answer:
After integration of an F-plasmid into a bacterial chromosome, the host's oriC (origin of replication) is activated, while oriV/oriF (the origin of replication for the F-plasmid) is suppressed. OriT is involved in the initial transfer but not in the post-integration replication.
Step-by-step explanation:
When an F-plasmid is integrated into a host bacterial chromosome, a process known as conjugation takes place. There are two important origins of replication to consider: oriC and oriV. OriC is the origin of replication for the host's chromosomal DNA, while oriV, also known as oriF, is associated with the F-plasmid's replication.
Once the F-plasmid integrates into the host chromosome, the host's oriC continues to function for the replication of the bacterial chromosome, now with the integrated F-plasmid. On the other hand, oriV/oriF, the F-plasmid's original origin of replication, gets suppressed because it is no longer needed for independent plasmid replication. Instead, the integrated plasmid is replicated as part of the host's chromosome using the host's oriC.
OriT, or origin of transfer, is relevant during the conjugation process, as this is the site where the DNA transfer begins, but not directly related to the question of which origin is activated or suppressed after plasmid integration.