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 metabolism (the 5,300 base pair lac operon)?是什么意思_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 metabolism (the 5,300 base pair lac operon)?在线翻译_英语_读音_用法_例句