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If glucose is present at high levels in a culture medium, will significant levels of active...

If glucose is present at high levels in a culture medium, will significant levels of active ?-galactosidase enzyme be detected? Select one: a. No. b. It will not make any difference. c. Yes.

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Answer #1

The answer would be A) NO

As this enzyme is part of lac operon which is only acticated in the presence of lactose as an energy source for the cell whenever glucose is not present. So, if glucose is present, the repressor would bind to the operator disabling the transcription og the downstream genes in the lac operon which include the gene for b galactosidase.

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