Name: ________________________ Discussion Unique No. ________
(Last, First)
Discussion Questions # 9 (Nov 6th, 2006)
Please answer any two of the questions, PRINT it out and turn it in either on your discussion sections or on next Monday's class no later than 12:00PM. Email attachments and late delivery are not acceptable.
1. Give an example of negative control in E. coli for-
- an inducible system
- a repressible system
2. What is the role of cAMP in positive regulation of lac operon? How would a mutation
that inactivates the enzyme adenyl cyclase affect it?
What is catabolite repression? Why a biphasic growth curve is observed when bacteria are grown in the presence of glucose and lactose?
Don’t forget tomorrow’s (11/7) review section at 2:00PM.
Good Luck to your exam.
17 FOR DISCUSSION PURPOSES ONLY CREATED ON 8222006 53100
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