00:01
From the first question that we have, which of the following gene is not regulated by the lack operand promoter for question number four.
00:11
The correct answer this one is lack i gene, and that would be letter a, because lack i gene is not regulated by lack operon promoter.
00:25
Lack operon contain your lack operon contain lack operon contain lack z, lack y, and lack a, which are under control of lack promoter.
00:45
So in question number four, the correct answer is option a, lack i gene.
00:54
For question number five, the question that given to us, which of the following statement is true with regards to regulation of the lack operon? the correct answer for this one is letter c, that is the lack operon, or basically letter c is the lack operon, or basically letter c is the lack operon is completely turned off in the presence of.
01:25
Of high glucose and also how glucose are high glucose and low lactose levels.
01:36
So the correct answer for question number five is letter c.
01:41
For question number six, which of the following mechanism of regulating gene expression is most responsible for producing the different cell types in our body? for question number six, there are some that will answer alternative splicing, because we already know that alternative splicing produce more than one form of mrna that encode different proteins.
02:13
But the best answer for this one is letter c.
02:17
Letter c, that would be transcription factor and rna polymerase binding to promoter region.
02:26
Why did i say so? because gene regulation is mainly depends upon transcription factors and specific polymerase binds to specific promoter site of gene, which has to be regulated...