3. After graduation. you and 19 friends build a raft, sail to a deserted island.

Question

3. After graduation. you and 19 friends build a raft, sail to a deserted island. and start new population, totally isolated from the world. Two of your friends carry (that is, are heterozygous for) the recessive cf allele, which in homozygotes causes cystic fibrosis A. Assuming that the trequency of this allele does not change as the population grows what will be the instance of cystic fibrosis on your island? B. Cystic fibrous births on the island is how many times greater than the origina mainland. The frequency of births on the mainland is .059%.

Explanation / Answer

A)2/40 are c(recessive cystic fibrosis allele)

q=0.05

q X q= 0.05x0.05=0.0025

= 0.25%

B)0.25/0.59=0.4237~4

Therefore, four times greater than the original island

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