0:00:01.470,0:00:03.060
So if we think about our nuclear

0:00:03.060,0:00:07.770
chromosomes, and our mitochondrial chromosomes, that includes everything

0:00:07.770,0:00:14.370
that you see here in this picture. All of this is the total cellular genome, for

0:00:14.370,0:00:18.410
the total human genome. Now when I say the total human genome in this case, I'm

0:00:18.410,0:00:22.600
not referring to any individual human in particular.

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I'm just referencing The constituent parts, or chromosomes,

0:00:26.790,0:00:28.590
that all play a role in making a

0:00:28.590,0:00:33.060
human. For example, we know that chromosome one, two,

0:00:33.060,0:00:35.270
three, four, five, six, seven, alright, all the way

0:00:35.270,0:00:38.160
down to the chromosome 22 and the sex chromosomes

0:00:38.160,0:00:42.650
and the mitochondrial chromosome is important in making a

0:00:42.650,0:00:46.470
human. Now for just a moment, don't count extra

0:00:46.470,0:00:48.970
copies of chromosomes. I want you to tell me

0:00:48.970,0:00:52.230
how many unique chromosomes are there in the total

0:00:52.230,0:00:57.590
cellular genome. Remember, I don't want you to count extra copies of

0:00:57.590,0:01:02.510
chromosomes. I want you to tell me how many unique chromosomes are there? It can

0:01:02.510,0:01:05.820
be a little tricky, so think about it before you answer. And I

0:01:05.820,0:01:09.530
want you to put your answer in number form in this text box here.