1. Describe how the lac operon functions when glucose and lactose levels are high.
2. Describe how the lac operon functions when glucose levels are low and lactose levels are high.
3. Describe how the lac operon functions when glucose levels are low and lactose levels are both absent.
4. Describe how the trp operon functions when trytophan is both present and absent.
5. Describe the process of protein degradation.