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So if we think about our nuclear

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chromosomes, and our mitochondrial chromosomes, that includes everything

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

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

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not referring to any individual human in particular.

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

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that all play a role in making a

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

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

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down to the chromosome 22 and the sex chromosomes

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and the mitochondrial chromosome is important in making a

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

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copies of chromosomes. I want you to tell me

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how many unique chromosomes are there in the total

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

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

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

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