Table 2.

Predicted age

Harvest	Probe sets	Predicted age (h)
		Continuous unexposed	Washout unexposed	Continuous exposed	Washout exposed
8	443	7.9 ± 0.38		4.5 ± 1.2*
14	635	14 ± 0.27	13 ± 0.94	9.6 ± 2.4*	9.5 ± 1.5*
20	1113	19.6 ± 0.37	19 ± 0.95	14 ± 1.9*	14.7 ± 1.4*
26	361	25.8 ± 0.13	25 ± 0.23*	18.7 ± 1.3*	20.3 ± 2.7*

The Predicted Age of worms cultured under the continuous or the 8 h washout conditions described in the text was calculated as described in Methods; the age is calculated from the initiation of the exposure. The number of probe sets used for predicting each age is shown, and Predicted Ages are reported ± SEM. Statistically significant differences from control are indicated by asterisks. The data presented in this table are also plotted in Figure  5.