3. Warfarin is a poison that is used to kill rodents. Resistance to this poison is a genetically determined trait in rats. Homozygotes carrying the resistance allele (WRWR) have a lower fitness because they suffer from vitamin K deficiency, but heterozygotes (WRWS) do not have this deficiency. Even so, the heterozygotes are resistant to warfarin. In an area where warfarin is used, a heterozygote has a survival advantage. Due to warfarin resistance, a heterozygote is also more fit than a homozygote (WSWS) that is sensitive to warfarin. If the relative fitness values for WRWS, WRWR, and WSWS individuals are 1.0, 0.37, and 0.19, respectively, in areas where warfarin is applied, calculate the allele frequencies at equilibrium. How would this equilibrium be affected if the rats were no longer exposed to warfarin