The lac operon is induced when lactose is added to the culture where E. coli is growing. ,

The Lac operon gets switched on when

In E.coli, lac operon is induced by

The lac operon is turned on when allolactose molecules bind to

In lac operon model, lactose functions as

Lac operon in E.coil, is induced by

Why does the lac operon shut down some time after the addition of lactose in the medium where E.coli was growing ? Why low level expression of lac operon is always required ?

In lac operon, lactose acts are

When lactose is added to the culture of E. coli, a few of its molecules get into the cells with help of :

the lac operonof E. coli gets switchedon when