The repressor is essentially a negative control mechanism .
阻遏物基本上是一种负控制机制。
How does the repressor control the operator gene
阻遏物如何控制操纵基因？
Remain the world 's largest repressor of media freedom .
而中国维持为最大的媒体自由压迫者。
It has an effect exactly opposite to that of repressor binding to an operator .
它与阻遏物结合到操作子上的作用正好相反。
Effector a molecule that can combine with a repressor in an operon , making the repressor inactive and thus enabling messenger rna and protein to be produced .
