問題詳情

49. Which of the following terms best characterizes catabolite repression associated with the lactose operon in E. coli?
(A) inducible system.
(B) repressible system.
(C) negative control.
(D) positive control.
(E) constitutive.

參考答案

答案:D
難度:困難0.285714
統計:A(4),B(0),C(3),D(4),E(1)

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