00:01
All right, so it's saying here is a dna strand and it has complementary base pairs.
00:08
So, okay, we know what the dna strain looks like.
00:11
So we're going to draw the dna strand separating.
00:14
So here's the double helix, right? here's some base pairs.
00:21
I'm just going to do some of it.
00:24
And this is just a reminder that in dna, a pairs with t and g pairs.
00:30
With c.
00:31
So if your dna strand is a g, g, c, a, a, let's say, a, g, c, a, then the complementary would be t, c, g, g, t, t, because a goes with t, c, g goes with t, c, g goes with t.
01:03
So there you have it separating, and this is one side right here.
01:10
This is the other side, right? the complementary pairs.
01:15
So it's separating down the middle.
01:17
The thing that separates the dna is dna helicase.
01:20
Okay.
01:21
So you have a helicase enzyme right here that separates it.
01:34
Down the middle, it unzips it.
01:39
Draw the free -floating rna bases linking up with the top side of the dna strand.
01:44
So i'm just going to redraw this, but just a little bit bigger.
01:50
So if you have a, g, c, a.
01:55
So this is dna.
02:00
A goes with t, g goes with c.
02:02
Okay, but it's special in rna.
02:07
A goes with you.
02:09
It's for your cell, but g and c is the same.
02:14
G and c still go together, but we're just going to circle...
