lac operon短语¹³¹⁶²⁰⁺³ 基本例句 乳糖操纵子 How long would it take for the E. coli RNA polymerase to synthesize the primary transcript for the E. coli genes encoding the enzymes for lactose metabolismthe 5,300 base pair lac operon? 一般认为大肠杆菌 RNA聚合酶合成大肠杆菌编码乳糖代谢酶5300bp的乳糖操纵子的基因的第一次转录要多长时间? chinafanyi.com The network analysis was used to lac operon system. 利用网络分析法对乳糖操纵子系统进行分析。 cnki