Table 1.

Viability of males and females carrying one copy each of the tetO-hid and yp1-tTA constructs

yp1-tTA line	tetO-hid line	Tetracycline, 10 μg/ml	No. female	No. male	Percentage male
19	53	−	1	330	99.7
19	53	+	376	362	49.1
19	27	−	18	195	91.5
19	27	+	175	138	44.1
19	8	−	61	99	61.9
19	8	+	46	33	41.8
6	53	−	2	89	97.8
6	53	+	181	162	47.2
22	53	−	216	194	47.3
22	53	+	209	189	47.5
30	53	−	47	120	71.8
30	53	+	165	112	40.4