00:01
We have a dna strand, and we want to know what amino acid sequence will be generated.
00:06
So the first thing we have to do is get the mrna, because we need the codons.
00:10
We don't have them right now.
00:12
What we have is a template.
00:14
And our template goes 3 prime to 5 prime.
00:18
So the first thing, mrna.
00:19
How are we going to do that? well, we need to know two things.
00:23
First, the base pairing rules.
00:25
So we know that guanin always binds to cytos.
00:31
And vice versa, adenine always binds to thymine or urosil.
00:37
Thymine if we're looking at dna and uracil if we're looking at rna.
00:43
So the strand we've been given has thymine that the one we're about to write out does not, it has uracil.
00:49
We also need to know which direction we're going to be writing this in.
00:53
We've been given three prime to five prime while nucleic acids always bind antiparral.
01:03
So our mrna sequence is going to start 5 prime.
01:09
What is the sequence going to be? well, let's go through.
01:11
First base here is a t, that's going to be an a.
01:15
Adonine to uracil, cytosine to guany...