Two chromosome inversions are commonly found in populations ofDrosophila pseudoobscura: Standard (ST) and Arrowhead (AR). Whenthe flies are treated with the insecticide DDT, the genotypes for theseinversions exhibit overdominance, with the following fitnesses:Genotype                                       FitnessST/ST                                                0.47ST/AR                                                 1AR/AR                                              0.62What will the frequencies of ST and AR be after equilibrium has beenreached?

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