下列關於大腸桿菌乳糖操縱組，其中的基因表現調節，哪一個敘述正確？ (A)抑制蛋白可與操縱組上的操作子結合 (B)乳糖可與 DNA 結合以抑制轉錄 (C)誘導物可與蛋白質結合抑制轉譯 (D)基因-58題庫

21. 下列關於大腸桿菌乳糖操縱組，其中的基因表現調節，哪一個敘述正確？
(A)抑制蛋白可與操縱組上的操作子結合
(B)乳糖可與 DNA 結合以抑制轉錄
(C)誘導物可與蛋白質結合抑制轉譯
(D)基因表現後的產物是乳糖。

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