Your company was awarded a contract to re-establish a population of frogs in a w

Question

Your company was awarded a contract to re-establish a population of frogs in a wetland following a PCB leak. You sample 175 adult frogs from a nearby wetland and genotype them at a gene with two alleles (A1 and A2) that has been well studied in frog populations exposed PCB. Use the table below to help you answer the following question:

What is p for the first two generations of frogs produced in the pond? (refer to Box 6.3 on page 194 of Evolutionary Analysis, by Herron & Freeman 5th Edition)

Explanation / Answer

Since first genotype and second genotype have survival probability are 0.85 and 0.70 respectively.

Now First genotype A1A1 having no. of survived are 104*85% = 88.4

Second genotype A1A2 having no. of survived are 40*70% = 28

Total no. of survived are 88+28 = 116

So. out of 144, samples, there are survival 116.

So, the survival probability is 116/144 = 0.80.

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