Table 2. Frequency of amhy⁺ and amhy⁻ genotypes in progenies from four single-pair crosses of amhy⁻ females and amhy⁺ males.

Crossa	Genotype		Total
	amhy+ (%)	amhy− (%)
A	21 (46.7)	24 (53.3)	45
B	16 (35.6)	29 (64.4)	45
C	21 (51.2)	20 (49.8)	41
D	20 (52.6)	18 (47.4)	38
Total	78 (46.2)	91 (53.8)	169

^aThe sex ratios of all progenies do not deviate significantly from 1:1.