But their juxtaposition would produce a critical breakthrough for our understanding of life.” Thus was born the concept of an “operon,” a cluster of genes whose expression is regulated by an adjacent regulatory gene.
雅各布说，“这两个系统看起来相差十万八千里。但将它们并列在一起，就产生了对生命的理解的关键突破。”“操纵子”（operon）的概念就是这样产生的。操纵子是基因簇，其表达受临近的调解基因控制。