04/11/18 Part 1 (1point) What is the role of the first structural gene (lacZ) in

Question

04/11/18 Part 1 (1point) What is the role of the first structural gene (lacZ) in the lacoperon? Select all that apply Choose one or more: O A It transports lactose into the cell. O B. It binds to and inactivates the lacrepressor. O C. It causes cAMP levels to rise in the presence of increasing concentrations of lactose. O D. It breaks down lactose into glucose and galactose O E. It isomerizes lactose into allolactose. Part 2 (1 point) Increased synthesis of . is a direct result of decreasing glucose levels. lac permease acrepressor Part 3 (1 noint) p- 10 OF 23 QUESTIONS COMPLETED

Explanation / Answer

1.

B.It binds to and inactivates lag repressor.

D. It breaks down lactose into glucose and galactose.

E. It isomerizes lactose into allolactose .

2. Allolactose.

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