Many promoter regions contain CAAT boxes containing consensus sequences CAAT or CCAAT approximately 70 to 80 bases upstream from the transcription start site. How might one determine the influence of CAAT boxes on the transcription rate of a given gene?

Video transcript

Everyone. Let's take a look at this question together which of the falling represents the consensus C A. T box sequence. So let's recall what we know about what that consensus C. 80 box sequence is to figure out which of the following sequences represented. So we know that that C A. T box sequence is a regulatory element found in the promoter region in eukaryotic jeans. And its consensus sequence is a five nucleotide long sequence of five nucleotide sequence which is located upstream of the transcription start site. And this consensus sequence looks something like this, which it is often shortened two C G C G C. And so looking at our answer choices, we C answer choice D. Says C G C G C. Which is that shortened consensus C A T box sequence. So it is the correct answer because we know that C A T box sequence, which is a regulatory element found in the promoter region in many eukaryotic genes that is a five nucleotide sequence. One shortened is C G C G C. Or answer choice D. The correct answer. I hope you found this video to be helpful. Thank you and goodbye.