00:01
This question basically talks about the catabolic repression of the lack operon.
00:06
So when we see, you know, a lack operon, there are different structural genes associated with it.
00:12
What happens is when we look at it and there is a cap binding site.
00:18
You know, so we have a cap binding domain here.
00:24
Promoter region is basically followed by this.
00:27
So we have a promoter region.
00:31
Next, we have operator region signified by o, and then we have our structural genes, like z, like y, and finally the lack a.
00:40
This catapolic repression, you know, is dependent upon presence and absence of glucose.
00:46
If glucose is present, it's sensible that the cell or the bacteria basically does not need lack of operon to process the lactose.
00:57
Lack of prone is basically shut when our glucose concentrations are high.
01:02
Now, i'm looking to these four options.
01:05
If we discuss the first option, that is cap does not bind to dna when a camp is present.
01:11
And this is totally false because for a cap to bind with dna, it basically needs the cyclic emp.
01:18
This is the cyclic amp.
01:19
So what happens is that at this, this is the cap binding site...