If lacI were mutated such that could no longer bind DNA, what effect would this

Question

If lacI were mutated such that could no longer bind DNA, what effect would this have on the regulation of the operon?

*** Ignore the already selected choice *** not sure if that is the asnwer

If lacl were mutated such that could no longer bind DNA, what effect would this have on the regulation of the operon? Multiple Choice One of the enzymes that are involved in lactose metabolism would not be able to carry out its reaction, and lactose would not be metabolized The cell would not be able to recognize the presence of lactose, and the lac operon would be under expressed. RNA polymerase would not properly bind to the promoter, and the lac operon would be under expressed. The repressor protein would not function properly, and the lac operon would be over expressed.

Explanation / Answer

Answer would be

The repressor protien would not function properly, and the lac operon would be over exspressed .......because lacI encodes for repressor which binds at operator.

Hope it helps .... REGARDS

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