Compare and contrast the properties of DNA polymerase and RNA ...

Question

Compare and contrast the properties of DNA polymerase and RNA polymerase, listing at least three similarities and at least three differences between the molecules.

Accepted Answer

Hello, everyone and welcome to today's video. Now we have which of the following statements is false. Let's go over all of our answer choices from A 3D. So we can identify the false statement. So as answer to is a, we have DNA polymerase can only synthesize DNA in the five prime to three prime direction or R N A polymerase can synthesize in both the five prime to three prime and the three prime to five prime directions. Well, is actually going to be a correct statement. We know for a fact that DNA polymerase can only synthesize can only replicate in the five prime to three prime direction V or N A polymerase can do it in both in the five prime to three prime and in the three prime to five prime directions. And therefore, we're going to cancel this statement out because we're looking for a false statement. Let's move on. We have answered choice B now which is DNA polymerase requires a primer to initiate DNA synthesis. Now, while RNA polymerase does not require a primer for R N A synthesis, now I want you to look back and kind of think about transcription have you ever heard of a primer doing transcription? You probably haven't. And this is because they're really not required, they're only going to be required for DNA replication. These R N A primers allow DNA replication to start, but they're not found in R N A uh creation or just transcription. And therefore, we're going to cancel this out because this is a true statement as well. Now, let's move on to answer choice. C we have DNA polymerase has a pro reading function. A proof reading function that allows it to correct errors in DNA or R N A polymerase lacks proof reading ability. Now, this is actually going to be correct as well because DNA polymerase has proof reading function, it can go back and just proofread what it is creating what R N A polymerase cannot, these are true statement. So we're going to cancel this out and then we have the which is our last answer. Choice. We have DNA polymers requires a template strand for DNA synthesis. Well, this is going to be a true statement. Well, R N A polymerase doesn't require a template strand for R N A synthesis. Well, this is going to be a false statement because R N A polymeric still requires some type of template strength for transcription to occur. It needs this template, it needs the information in order to create the M R N A strand, it cannot create it from thin air and therefore this is a false statement and we're going to highlight it as the final answer to a question. I really hope this video helped you and I hope to see you on the next one.

Compare and contrast the properties of DNA polymerase and RNA polymerase, listing at least three similarities and at least three differences between the molecules.

Key Concepts

DNA Polymerase

RNA Polymerase

Similarities and Differences

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