Problem:
Transformation & Blue-White Selection
Question 1: Explain what might happen if you added the LB media to your cells and immediately spread them on the LB agar plates + ampicillin?
Question 2: Why would bacteria want to control when they express the lacZ gene? In other words, why don't the bacteria make a lot of ?-gal enzyme all the time?
Could someone help to explain the answer of these questions.