Hi, everyone. My name is Eric and let's review problem eight. So, after reading the question, you should find that there are two things that this question is asking for. The first part is taking the amino acid sequence and translating it back into a nucleotide sequence. The second question is asking about the middle searing and what happens when it changes to assisting. What would that sequence look like? So let's focus on the first part. So after looking at the amino acid sequence, you should find that there are 17 amino acids, and that means that there is going to be 51 nucleotides. That is because each amino acid is comprised of three nucleotides. So we call that a code on and let's write out the amino acid sequence here. So first they have a sparrow Jing searing glide scene Dining history Dean Pro lean glycerine Life scene, Loose scene, Alan. I mean searing trip to fend phenylalanine. I'm running out of space here. We'll just continue at the bottom here, so just know that this is gonna be a continuation. So then we have very lean Glad I seen again a spar Janine and finally searing So this will be the beginning with the estrogen in up here and the the ending will be the Syrian here. So in order to translate this amino acid sequence two nucleotides, we have to look at what's called DNA code on chart or table, and I recommend that you use this to translate each amino acid to its nucleotide sequences. So each of these amino acids are going to be comprised of three nucleotides each. And when you look at the table, there's going to be differences in the sequences. But most of the time, if you pick one of the amino acids, that should be the sequence that corresponds to that amino acid. So, for example, I'll be solving this part of the this solved the problem here. So let's start with a Spar Jenning. So far, Johnny, there are different combinations of nucleotides, but I picked one so the first one will be a T and then searing TCG glassine G T and the dining A. T g. This state Dean C. A c pro lean CCG glycerine G a. Listen a g loosen t t a. Allan e g c c searing T c T trip to fan T g. And finally nein T t c veiling g t a glazing g a spar Jinyan again a 80 and finally searing T c A. So this is a perfectly valid nucleotide sequence that corresponds to the amino acid sequence, right? The differences. The nucleotides is DNA and amino acids are for protein, so that would be code for protein. And that is the first part of the question where they're asking you to translate it from amino acid back to nuclear side. And so the second part is talking about searing the middle searing, to be exact. So that would be this one right here. And they want to change this searing into assisting. So by using the DNA code on table, you would be able to change the searing code to assisting code. And how would we do that? T. C t, in my example here, can be changed to Sistine by changing the middle seat from T C T to T g t. So this would be a way to change it from searing to Sistine. And this is a perfectly valid example. And there are many other ways that you can do this there are different combinations as long as they match. The amino acid is perfectly valid, so I hope this helps bring a little bit of clarification into understanding how to change from amino acid to nucleotide sequence. A key component will be using this table. It's a really important tool and also hope you that you understand how to change the Syrian to assisting and how the sequence is related to the amino acid. Thanks for listening and see you next time.