Write a short essay that summarizes the key properties of the genetic code and the process by which RNA is transcribed on a DNA template.

Video transcript

Hi everyone. Let's look at our next problem here. It says the genetic code U. G. A. In the nuclear genome is interpreted as blank. But in the mitochondrial genome the D U G. A codes for blank. Well, mitochondrial DNA as we know the mitochondria have their own D. N. A. And then the mitochondrial DNA genome. The genetic code those code. And that code for specific amino acids is slightly different than the new genetic code used in the nuclear genome. So I'm just gonna put up a little table of some of the differences that we can refer to to answer our question here. So our problem has provided us with the genetic code of U. G. A. So we go down to our little chart here and look up U. G. A. And we see that in mitochondria U. G. A codes for tryptophan. So we see that's our second blank here it says. But in the mitochondrial genome the codes for. So we're gonna look for the ones that have tripped a fan as the second choice here. So that would be choice. These are only one. So again in a hurry I'd go ahead and pick the and move on. We see that B and C. Have trip to fan as the first choice and choice A. Doesn't have trip to fan at all. So they're not correct. And then we just confirm that in the nuclear genome that U. G. A. Is a stop code on. And you can see in our chart here too. And there's another difference in stop code ons mitochondria has a stop code on that codes for loosen in the nuclear genome. So just interesting little differences there. And we do indeed have for our first blank the stop code on. So we have as our answer the genetic code U. G. A. And the nuclear genome is interpreted as choice D. Stop code on. But in the mitochondrial genome, the codes for trip to fan. See you in the next video.