Table 1.

Rescue of the medial vertex structures with multiple heat pulses

Flies	Heat induction*	Rescue of ocelli structures, %			Heads examined, n
		Total	With lens	With pigment
oc1/Y; hsp-otd/+	72–85	44	25	29	72
	84–97	37	29	7	68
	96–109	4	4	0	55
	108–121	4	4	0	27
oc1/Y; hsp-ems/+	72–85	0	0	0	52
	84–97	0	0	0	50
oc1/Y; +/+	72–85	0	0	0	51
	84–97	0	0	0	50

^*Hours after egg laying.