Gene regulation governing lactose operon of E.coli that involves the lac $I$ gene product is
negative and repressible because repressorprotein prevents transcription
feedback inhibition because excess of bgalactosidasecan switch off transcription
positive and inducible because it can beinduced by lactose
negative and inducible because repressorprotein prevents transcription.
In lac operon system lac gene -$I $ codes for
In the lactose operon of Escherichia coli, what is the function of promoter
The lactose present in the growth medium of bacteria is transported to the cell by the action of
The genes are responsible for growth and differentiation in an organism through regulation of
Select the two correct statements out of the four $(i-iv)$ given below about lac operon.
$i.$ Glucose or galactose may bind with the repressor and inactivate it.
$ii.$ In the absence of lactose, the repressor binds with the operator region.
$iii.$ The z-gene codes for permease.
$iv.$ This was elucidated by Francois Jacob and Jacque Monod.