問題詳情
59. Which of the following can maintain gene expression from lac operon?
(A) High level of glucose from the breakdown of lactose
(B) Lactose must binds to the operator
(C) High level of cAMP in the presence of lactose
(D) Repressor must binds to operator
(E) Stop producing repressor
參考答案
答案：C
難度：適中0.428571
統計：A(1),B(2),C(3),D(1),E(0)