Operon containing genes coding for the synthesis of tryptophan .

含有编码色氨酸合成酶基因的操纵子。

Isolation and characterization of a competence operon associated with transformation and adhesion in helicobacter pylori .

有关幽门杆菌的转化和黏著operon的分离与特性化。

Describe the probable effects on gene expression in the lac operon of mutations in .

描述在下列位置发生突变对乳糖操纵子的基因表达。

Operon containing genes that metabolize the sugar arabinose .

含有阿拉伯糖代谢基因的操纵子。

An operon containing genes involved in lactose metabolism .

含有乳糖（lactose）代谢基因的操纵子。