the above E. coli cell, with high glucose and low lactose levels, what happens at the operator?  low lactose causes activation of a repressor protein, allowing it to detach from the operator low lactose causes inactivation of a repressor protein, allowing it to detach from the operator low lactose causes activation of a repressor protein, allowing it to bind to the operator low lactose causes inactivation of a repressor protein, allowing it to bind to the operator all of the above

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter14: Gene Regulation
Section: Chapter Questions
Problem 10TYU: Which of the following is an example of positive control? (a) transcription occurs when a repressor...
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In the above E. coli cell, with high glucose and low lactose levels, what happens at the operator? 

  1. low lactose causes activation of a repressor protein, allowing it to detach from the operator
  2. low lactose causes inactivation of a repressor protein, allowing it to detach from the operator
  3. low lactose causes activation of a repressor protein, allowing it to bind to the operator
  4. low lactose causes inactivation of a repressor protein, allowing it to bind to the operator
  5. all of the above
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