Q:Q: When lactose is present in the cell, what allows the lac genes to be expressed? Read this paragraph and choose the correct option from the provided answers: When lactose is present, the repressor protein does not bind to the operator. This allows RNA polymerase to bind to the promoter and begin transcription. As a result, the lac genes are expressed, and lactose is digested. Choices: - concentration of repressor protein - binding of expressor protein - the addition of water - nonbinding of repressor protein A:
A:
nonbinding of repressor protein