Table 4.

Results from self-cross of G₂ colored-eye progeny

Family	Phenotypic class	No. of animals	Total	χ2
11	White-eye	86	273	7.32*
	Heterozygous colored-eye	132
	Homozygous colored-eye	55
122	White-eye	99	422	0.80*
	Heterozygous colored-eye	211
	Homozygous colored-eye	112
128	White-eye males	93	320	11.34†
	Colored-eyed males	97
	White-eyed females	0
	Colored-eyed females	130
137	White-eye	75	235	0.23‡
	Heterozygous colored-eye	160
	Homozygous colored-eye	0

^*Phenotypic distributions are consistent with a 1:2:1 ratio as evaluated by χ², df = 2. 

^†Phenotypic distributions are consistent with segregation of a sex-linked gene as evaluated by χ², df = 3. 

^‡The mariner insertion in this family results in a homozygous lethal phenotype and a 2:1 ratio of colored-eye/white-eye surviving animals. The observed phenotypic distributions are consistent with this interpretation as evaluated by χ², df = 2.