Figure 4.
Quantitation of mutant eye phenotypes. The average fraction of faf-type (open bars) and Rap1R-type (shaded bars) mutant facets was calculated for each of the genotypes shown. One hundred to 500 facets in two to five eyes were counted for each genotype, except for the genotypes with no error bars where one eye was counted. The error bars represent one standard deviation above and below the mean value obtained for each eye; standard errors are large in the cases where there was significant variation in the penetrance of the phenotype. For reasons that are not understood, the mutant Rap1 alleles suppress the faf phenotype.