s t possible to get any transcription of the lac operon in the absence of lactos

Question

s t possible to get any transcription of the lac operon in the absence of lactose? Why or why not? Yes, some transaription must take place in order to produce the permease to allow lactose to enter the cell·inorder to produce Aigalatosdase to make anoladose, ard because regressor protein keeps transcription at a very low basal level, some transcripts will be and transiated o Yes, because although the repressor protein keeps transcription at a very low basal level, some transcripts will be produced and translated Yes, some transcription must take place in order to produce Agalatosdase tomake allactose. Yes, some transcription must take place in order to produce the permease to allow lactose to o enter the cell No, without lactose the repressor protein will always prevent transcription MacBook Ai 0 8F 2 3 4

Explanation / Answer

No, without lactose ,the repressor protein will always prevent transcription

This is because The lac operon of E. coli contains genes involved in lactose metabolism. It is expressed only when lactose is present and glucose is absent.There fore, upon unavailability of lactose, the lac repressor binds tightly to the operator and prevents the transcription by RNA polymerase.

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