Which of the following would you expect to find in an inducible system?
A repressor protein, which is bound to $DNA$ in absence of any other factor.
A repressor protein, which is bound to $DNA$ in the presence of a corepressor.
An activator protein, which is bound to $DNA$ in the absence of any other factor.
An activator protein, which is bound to $DNA$ only in the absence of air inhibitor.
In the medium where $E$. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?
Definitions/Explanation : Regulatorgene & Promotergene
The lactose present in the growth medium of bacteria is transported to the cell by the action of
Lac operon is
The regulatory genes are located