00:01
What do we call one of the 46 molecules of dna that virtually every cell of a human body contains? there are 23 pairs of them.
00:09
So these are the chromosomes.
00:11
This is a chromosome.
00:13
And almost all of your cells have 46 chromosomes in 23 pairs.
00:20
So a chromosome pair would look like, let's say this.
00:24
It contains a molecule of dna, double -stranded, extremely long, has thousands of genes on it.
00:32
And they come in pairs.
00:33
And it's not just dna.
00:34
There's protein as well.
00:36
So there's dna plus protein.
00:38
And the protein is coiled around the protein and it helps with packaging, controlling access to the genes...