In fruit flies, curved wings are recessive to straight wings, and ebony body is recessive to gray body. A cross was made between true-breeding flies with curved wings and gray bodies to flies with straight wings and ebony bodies. The offspring were then mated to flies with curved wings and ebony bodies to produce an F, generation.
A. Diagram the genotypes of this cross, starting with the parental generation and ending with the F2 generation.
B. What are the predicted phenotypic ratios of the F, generation?
C. Let's suppose the following data were obtained for the F, generation:
114 curved wings, ebony body
105 curved wings, gray body
111 straight wings, gray body
114 straight wings, ebony body
Conduct a chi square analysis to determine if the experimental data are consistent with the expected outcome based on Mendel's laws.