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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the function of the lac operon?
💡 Hint: Think about what the operon regulates.
Question 2
Easy
Name one of the enzymes produced by the lac operon.
💡 Hint: This enzyme helps in breaking down lactose.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the function of the lac operon?
- a) Regulation of glucose metabolism
- b) Metabolism of lactose
- c) Repair of DNA
💡 Hint: Focus on what substrate the genes within the operon act upon.
Question 2
True or False: The lac operon is only positively regulated.
- True
- False
💡 Hint: Remember the dual control mechanisms.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Discuss the implications for E. coli survival if a mutation in the lac operon permanently activates the operon regardless of lactose presence.
💡 Hint: Consider the energy costs of unnecessary enzyme production.
Question 2
How would the lac operon respond to the combined presence of lactose and high glucose levels in the environment?
💡 Hint: Think about the preference of bacteria for energy sources.
Challenge and get performance evaluation