Assignment task: The lacZ gene, responsible for lactose metabolism is an inducible gene regulated by a repressor protein. Answer the following questions regarding how this gene is regulated.
Q1. What is the default setting in reference to the expression of lacZ?
Q2. What role does lacI play in regulating the system?
Q3. What happens when the system is exposed to lactose?
Q4. What happens after the cell digests the lactose supply?