Assume that the sequence of bases shown below is present on one nucleotide chain of a DNA duplex and that the chain has opened up at a replication fork. Synthesis of an RNA primer occurs on this template starting at the base that is underlined. If the RNA primer consists of eight nucleotides, what is its base sequence?

Video transcript

Hello everyone and welcome to today's video. So the sentences of an RNA primary begins at the base highlighted in the template below, which is going to be this timing that we have here, identify the sequence of the RNA primer that is nucleotides along. Well. In order to do this, we have to first extract the sequence of DNA that the RNA primer is coming for from. Remember that this RNA primer is going to be complementary to this D. N. A. Strand. Now, how are we going to do that? We're going to first. Right since this D. N. A strand is running three prime to five prime, we're going to be writing the opposite for or RNA primer. Now let's simply match or find a complementary nitrogenous base that would match with the nitrogenous bases in the D. N. A. Strength. Now let's do that. And this is where we get. Well remember first of all that in our any we do not have timing, we have euros L. So that is why we're going to be putting that is complementary to these at an inn base and let's continue. And eventually this is the RNA primer that we're going to be getting. Now if we look at our answer choices, we're going to see that the correct answer choice for this question is going to be answer choice. I really hope this video helped you and I hope to see you on the next one