Chapter 4, Problem 10EQ

In a species of plant, two genes control flower color. The red allele $\left(R\right)$

is dominant to the white allele $\left(r\right);$

the color-producing allele $\left(C\right)$

is dominant to the non-color-producing allele $\left(c\right)$

. You suspect that either an $rr$

homozygote or a cc homozygote will produce white flowers. In other words, $rr$

is epistatic to C, and cc is epistatic to R. To test your hypothesis, you allow heterozygous plants $\left(RrCc\right)$

to self-fertilize and count the offspring. You obtain the following data: 201 plants with red flowers and 144 with white flowers. Conduct a chi square analysis to see if your observed data are consistent with your hypothesis.