Which protein binds to the operator region of the lac operon?

Which protein binds to the operator region of the lac operon?

Step 1: Understand what the lac operon is. It is a group of genes in bacteria that help them use lactose as food.
Step 2: Learn about the operator region. This is a specific part of the lac operon where proteins can bind to control gene activity.
Step 3: Identify the protein that binds to the operator region. This protein is called the lac repressor.
Step 4: Know the function of the lac repressor. When lactose is not present, the lac repressor attaches to the operator region.
Step 5: Understand the effect of the lac repressor binding. It prevents the transcription (copying) of the genes needed to break down lactose.

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