So if we think about our nuclear

chromosomes, and our mitochondrial chromosomes, that includes everything

that you see here in this picture. All of this is the total cellular genome, for

the total human genome. Now when I say the total human genome in this case, I'm

not referring to any individual human in particular.

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

that all play a role in making a

human. For example, we know that chromosome one, two,

three, four, five, six, seven, alright, all the way

down to the chromosome 22 and the sex chromosomes

and the mitochondrial chromosome is important in making a

human. Now for just a moment, don't count extra

copies of chromosomes. I want you to tell me

how many unique chromosomes are there in the total

cellular genome. Remember, I don't want you to count extra copies of

chromosomes. I want you to tell me how many unique chromosomes are there? It can

be a little tricky, so think about it before you answer. And I

want you to put your answer in number form in this text box here.