Table 1.

Segregation ratios for the F₂ generations from crosses of sad mutants with the wild-type parent

Mutant	Fluorescence		χ2 Wild-type: reduced = 3:1*
	Wild-type	Reduced
109	40	19	1.6
610	101	32	0.06
791	74	27	0.16
1,027	72	20	0.52
1,139	251	70	1.3
616	84	21	1.4
9	150	47	0.13
376	58	18	0.07
825	71	33	2.5

*Segregation analysis is consistent with a 3:1 ratio in all cases (P > 0.05).