In fruit flies, the recessive v allele results in vermilion (bright red) eyes; the wild type v+ allele results in red eyes. The dominant p+ allele of a second gene is required to produce pigment; the recessive p allele results in white eyes. When a pure-breeding vermilion-eyed female was crossed with a pure-breeding white-eyed male, the F1 progeny consisted of red-eyed females and vermilion-eyed males. When the F1 flies were intercrossed the F2 progeny of both sexes consisted of 3/8 red, 3/8 vermilion and 2/8 white-eyed flies. Explain these results and show the genotypes of the parents, the F1 and the F2.