**Question:**Which of the following is false when the genes of the Lac operon are being transcribed in high amounts:A) RNA polymerase is bound to the promoter B) The repressor is bound to the operator C) Allolactose is bound to the repressor D) Cyclic AMP is bound to CAP **Explanation:**The Lac operon is a segment of DNA found in E. coli and other bacteria that allows for the metabolism of lactose when glucose is not available. When the operon is active, the following occurs:- **RNA polymerase** binds to the promoter, initiating transcription.- **Allolactose** binds to the repressor, preventing it from binding to the operator, hence allowing transcription.- **Cyclic AMP** binds to the catabolite activator protein (CAP), enhancing transcription in the absence of glucose.Therefore, option B is false when the operon is highly transcribed, as the repressor should not be bound to the operator; instead, it is inactivated by allolactose.

Lac operon is a set of genes used by E.coli to metabolize lactose when glucose is not available for the energy It involves : a promoter a repressor lactose lac Y lac Z CAPOption A is true as when lactose genes are being transcribed RNA polymerase binds to the promoter so that the genes can be transcribed option C is true as allolactose which is a derivate of lactose binds to the repressor during the metabolism of lactose so that the genes as be transcribed as repressors binds to the operator to stop transcribing option D is true as cyclic AMP is a hunger molecule which senses the level of glucose in the vicinity of the cell and inside cell and stops the lac operon from functioning hence option B is false as during metabolism of lactose in the cell the repressor is bound to allolactose and not to the operator as if it was bound to repressor it would lead to genes not being transcribed