The eukaryotic gene Gen-100 contains four introns labeled A to...

Question

The eukaryotic gene Gen-100 contains four introns labeled A to D. Imagine that Gen-100 has been isolated and its DNA has been denatured and mixed with polyadenylated mRNA from the gene.

Label the introns.

Accepted Answer

Hello everyone and welcome to today's video. So in res are sequences of nucleotides that do not code for proteins. All of the following are functions of rans accept and we have as answer choice A, they promote the processing of R N A as answer choice B, the they enhance protein function as answer choice C, they increase genetic diversity and as answer choice D, they regulate the expression of the gene. Let's begin by analyzing answer choice A, they promote their processing of R N A. Well as it turns out, there is something called mediated enhancement that allow interns to promote the processing of R N A. Moreover, there is evidence that the intrans are involved in nuclear exports of R N A as well as increasing transcript stability. Now, because of this inter mediated enhancement, these interns are going to be promoting the processing of R N A and we're going to cancel it out because we're looking for the exception. Now we have C and as they increase the genetic diversity. So you probably have heard from previous videos. The term of alternative splicing and alternative supply scenes allows the creation of different protein products from the same strand of M R N A due to the presence of these insurances, really depends on how we supply this molecule and what we include in it that a different protein product can be created and therefore they can increase genetic diversity. And we're going to cancel this out. Then we have the, the regulated the expression of the gene. Well, remember that they are able to help in nuclear export exports and increasing the transcripts stability. And because of this, they're going to allow an enhancement on the expression of these genes by making sure that these M R E gets to the ribosomes, there is also a function of them. So we're going to cancel them out and then we have B which is our last answer choice, which is that the enhanced protein function. Well, remember and look at our question here. These inters are not going to be coding for proteins. So they're not going to be present usually in the proteins. And therefore they're not going to be able to help with protein function. So we're going to be selecting answer choice B then enhance protein function as a final answer to our question. I really hope this video helped you and I hope to see you on the next one.

The eukaryotic gene Gen-100 contains four introns labeled A to D. Imagine that Gen-100 has been isolated and its DNA has been denatured and mixed with polyadenylated mRNA from the gene.
Label the introns.

Key Concepts

Introns and Exons

RNA Splicing

Polyadenylation

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