Red-spotted purple butterflies come in three color phenotypes. north of chicago, the light morph tends to be more common, while south of chicago the dark phenotype is more common. the inheritance pattern for the wing coloration is consistent with a single-gene trait with incomplete dominance. hybrid individuals with intermediate phenotype are found where the ranges of northern and southern populations meet, but are extremely rare elsewhere in the ranges of each population.

you set up an experiment to test the hypothesis that in southern populations the dark phenotype is more common because it is ignored by potential bird predators, possibly because they mistake the dark phenotype for the toxic pipeline swallowtail butterfly that occurs in the same region south of chicago.

in a region south of chicago, you release 1000 tagged red-spotted purple butterflies of each: light, dark, and hybrid morphs, with an allele frequency of the dark allele p = blank , and the light allele q = blank among the 3000 tagged butterflies you released.

after a week, you attract red-spotted purples with rotten fruit, and attempt to recapture as many of your tagged individuals as you can. you manage to recover the following numbers of individuals:

light morphs: 4

hybrid morphs: 56

dark morphs: 89

the allele frequencies among your recaptured individuals is now for the dark allele p = ? and the light allele q = ? .