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Allele Tracking

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    Once a mutation has been passed on then
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    it can spread in the population. So from our
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    campsite example of the bear, once you survive
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    and once you produce, more importantly. That allele, that
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    mutation can get passed on to the next
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    generation. And the more kids you have the more
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    you can change the population frequency. So let's focus
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    on this one particular metric. Allele frequency. We need
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    some alleles to focus on, so let's go
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    back to our trusty lactase persistence alleles. We've
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    learned that there's a lactase persistence allele that's
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    dominate. Plus here, and a lactase non-persistence allele that's
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    recessive here, minus. Now let's say I have
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    a thousand people. 500 are homozygous dominant, 350
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    are heterozygous, and 150 are homozygous recessive. I
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    want you to tell me how many total alleles
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    there are in the population of a thousand people. Go ahead
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    and enter your answer as a number in the box here.
タイトル:
Allele Tracking
Video Language:
English
Team:
Udacity
プロジェクト:
BIO110 - Tales from the Genome
Duration:
0:59

English subtitles

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