10.2 Structural gene clusters are coordinately controlled Startpoint WNN Figure 10.5 Urw indie Repressor and RNa polymerase 5040-30-20-101102030 bind at sites that Promoter overlap around binds RNa polymerase the startpoint of Operator the lac operon binds repressor 请莘大Figure 10.5 Repressor and RNA polymerase bind at sites that overlap around the startpoint of the lac operon. 10.2 Structural gene clusters are coordinately controlled