Distinguish between the cis-acting regulatory elements referred to as promoters and enhancers.

Video transcript

Hey everyone. Let's take a look at this question together. Which of the following is an example of a cis acting regulatory element. So let's recall what we've learned about what's this acting regulatory element is to figure out which of the following is an example of that cis acting regulatory element. Well we know that assist acting regulatory element is A D. N. A sequence that regulates jean expression. And it does this by interacting with transcription factors or R. N. A bloomer raises and this has to be within the same D. N. A molecule because it is cis acting meaning the same. So it has to interact with transcription factors or RNA polymerase is within the same DNA molecule. And some examples of this could be promoters or enhancers, silencers and even response elements. And so looking at our answer choices. Only one option here is an example that is an interaction within the same DNA molecule and not interacting with a different molecule. And that is answer choice C. The correct answer because this D. N. A enhancer element is a cis acting regulatory element because it is an interaction within the same DNA molecule. Whereas answer A this transcription factor is binding to a promoter region on another molecule or the micro RNA that base pairs with M. R. N. A. Is on another molecule and then answer choice D. The histone enzyme is interacting with a different molecule. So answer choice is A B and D. Are all incorrect and answer choice C. Is the only example here of assists acting regulatory elements. So it is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.