E coli的复制 Replication of Ecoli DNA Gene A located near oriC has a Replication fork high rate of Direction of expression replication oric orIc Gene A Gene A oric Gene A Gene A oric terc Replication fork terc Gene A Gene B Direction of Gene B oric Gene Ao replication ∥ Gene B located near terc has a E coli chromosome lower rate of during rapid growth expression than gene AE.coli 的复制