1. In a species of plant, two genes control flower color. The red allele (R) is dominant to the white allele (r); the color producing allele (C) is dominant to the non-color producing allele (c). You suspect that either an rr homozygote or a cc homozygote will produce white flowers. To test your hypothesis, you allowed heterozygous plants (RrCc) to self-fertilize and counted the offspring in each phenotypic class. You obtained the following data: 201 plants with red flowers and 144 with white flowers.
a. State your null hypothesis for the mode of inheritance for flower color in this species. Be specific about the type of gene interaction in your hypothesis.
b. Conduct a chi-square analysis to see if your observed data are consistent with your hypothesis.