00:01
Alright, so in this question we are given a mrna transcript and we're first being asked to form our polypeptide given our m rna codons so to do so i'm going to use the protein coding table you might already have this in your notes.
00:16
I see that it's also pictured down here in the question itself but you can also google a copy of the table too so obviously i can't insert it into the whiteboard, but i'll kind of go through and talk it out so obviously you have the first letter of your code on the left side, the second up top, and then the third letter down the right side.
00:37
And pretty much what you do is you take your individual letters and kind of meet in the middle to find your codon and your associated amino acid.
00:47
So first we have a ug.
00:49
So if we look at our chart and meet in the middle where we have that code on, we are going to see that this codes for the amino acid methyanine.
00:59
And a ug is special in the fact that this is your start to codon.
01:07
So continuing down the line, uh c g g this is going to give us the amino acid arginine.
01:16
Uua will give us lucine.
01:22
C ua will also give us leucine.
01:28
C u .a will also give us leucine.
01:37
U c .a will give us serene.
01:42
And lastly, ua this is our stop codons.
01:49
There are two other more stop codons that you can see also in the protein coding table and uag is just one of them.
01:56
So once it hits this codon then we know to stop translation and this is where our polypeptide chain would be released into the cytoplasm to be on its way.
02:09
So that is the simple process of translation...