What Do You Predict Would Happen If You Replace the Lac

Multiple Choice

What do you predict would happen if you replace the Lac operator DNA from the Lac operon with the DNA from the operator region from the tryptophan operon?

A) The presence of lactose will not cause allosteric changes to the Lac repressor.
B) The Lac operon will not be transcribed when tryptophan levels are high.
C) The lack of glucose will no longer allow CAP binding to the DNA.
D) RNA polymerase will only bind to the Lac promoter when lactose is present.