In this chapter, we focused on how eukaryotic genes are regulated...

Question

In this chapter, we focused on how eukaryotic genes are regulated at the transcriptional level. Along the way, we found many opportunities to consider the methods and reasoning by which much of this information was acquired. From the explanations given in the chapter,How do we know that promoter and enhancer sequences control the initiation of transcription in eukaryotes?

Accepted Answer

Hi, everyone. Welcome back. Let's look at our next question. It says, which of the following statements about transcription promoters is false. So we're going to recall that the transcription promoters of those regions where RN A polymerase binds to the DNA strand to begin transcription. And we're looking for the false statement for our answer. So, keeping that in mind, let's look through our answer. Choices. Choice A says it is located at the five prime end of the sense strand. Well, this would be true. The promoter needs to be before the gene because that's where because RN A plum has to be able to bind there uh and access the whole gene. So you would need to have it at the beginning end here, the five prime end. So since that's true, that's not our answer. Choice. Joyce B says it is a site to which the RN A prelim binds. Well, that is the definition of the promoter. So that is also true and therefore not our answer. And choice C says it can be located far from the gene. Well, this is false. Um enhancers can be located anywhere in the sense strand, but A promoter needs to be immediately before, right at the beginning of that gene and can't be located far from it. Uh Since you need the RN A polymerase to be there, starting to transcribe that gene. So choice C is going to be our answer choice for our false statement. And then finally, choice D says it is a precursor for the transcription process to occur. And that is correct. The RN A preliminary has to bind in order for the um RN A transcript to come about. So without that promoter region, without that binding site, transcription will not occur. So this is also true and not our answer choice. So which of the following statements about transcription promoters are false. Choice C it can be located far from the gene. See you in the next video.

Struggling with Genetics?

Watch next

Transcription in Eukaryotes practice set