And that repressive protein that is bound to the operator will basically detach from the operator. And once it detaches, then our cap can basically bind to the cap side and that will activate the promoter region, this region that basically promotes the transcription of these genes. And so when our repressor is inactivated and our cap binds to our cap side, only then can the RNA polymerase actually bind to the promoter and begin the transcription of these genes. So at a low concentration of our glucose, we want to be able to break down lactose to actually form the glucose that we can use to break down and form our ATP molecules. And so at low concentration of glucose, we want to express the formation of our beta galacticidase so that we can use this betagalacticidase to actually break down our lactose molecule. So once again, when the glucose concentration is low and lactose concentration is high, the lactose can transform into another disaccharide known as allo lactose, which binds to the repressor protein allosterically and inactivates that repressive protein which then detaches from the operator side on our apron on our lac operon.