試卷名稱:109年 - 109 國立臺灣大學_碩士班招生考試:分子生物學(B)#125811
年份:109年
科目:研究所、轉學考(插大)◆分子生物學
20. Operator constitutive mutants of the lac operon would
(A) express the lac repressor constitutively.
(B) block the binding of RNA polymerase to the promoter.
(C) enhance the binding of RNA polymerase to the promoter.
(D) prevent the inducer from binding to the repressor.
(E) express ẞ-galactosidase constitutively.