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Question: 5 after graduation you and 19 of your closest friends...

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5. After graduation, you and 19 of your closest friends (lets say a total of 10 males and 10 females) charter a plane to go on a round-the-world tour. Unfortunately, you all crash land (safely) on a deserted island. No one finds you and you start a new population totally isolated from the rest of the world. Two of your friends carry (i.e. are heterozygous for) the recessive cystic fibrosis allele (c). a. Assuming that the frequency of this allele does not change as the population grows, what will be the incidence of cystic fibrosis on your island? b. Explain how this is an example of genetic drift.
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