Many times (at least several times a week) I would feel a lot of air in my stomach - mostly after eating or drinking soda or whatever. It was okay for a while, but I didn't think it was normal for me to produce that much gas in my stomach and for me to be unable to burp.
In molecular genetics, a repressor is a DNA-or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencers.
Term. repressor. Definition. tetrameric protein which controls the lac operator, it is bound to operator when lactose is not present. When lactose is present, it binds to the repressor, which causes it to dissociate from the operator.Term. lactose. Definition. sugar present in milk, a low levels repressor it bound to operator, a high levels it binds to repressor allowing for dissociation and gene transcription.ses energy from ATP to help unwind the DNA at the start site allowing Pol II to form an open complex in which DNA around the start site is melted and the template strand id bound at the polymerase active site.