00:01
The question talks about lac operon.
00:02
In lac operon, it is asking us to determine events that are going to increase the concentration of the gene products as well as we have to determine the reasons which are going to decrease the concentration of the gene products.
00:20
So we'll start with the increase increase in lac gene products.
00:29
The reason by which there will be an increase in the lac gene products is going to be the allolactose presence.
00:37
Allolactose presence.
00:39
What is going to happen is when the allolactose is present, the allolactose, it is going to bind with, this binds with the lac repressor.
00:52
Repressor which is present here it is going to bind with the lac repressor and when this allolactose binds with the lac repressor what happens is there will be inactivation inactivation of the repressor now when there is the inactivation of repressor nobody is going to disrupt the rna polymerase activity so what happens is now the rna polymerase is free to bind free to bind with the promoter region the promoter region which is present here and when it binds with the promoter region transcription happens and then after transcription translation will also happen and finally the gene products are made gene products are made so this is one way in which we can increase the lag gene products now when we talk about the decrease decrease in the lac gene products.
01:56
Decrease in the lac gene products there are two ways.
01:59
The first way is the lac of allolactose.
02:04
Lac of allolactose.
02:09
Now when there is no allolactose then what will happen that nothing will bind with the lac repressor.
02:15
So the lac repressor is free now...