Fig. 5. RA treatment inhibits expansion of the pharynx in BMS009-treated larvae. (Top) Body length in larvae treated with 1x10^–6M BMS009 and 0-1x10^–6M RA is same as in untreated controls. (Bottom) The length of the pharynx is approximately doubled in larvae treated with 1x10^–6M BMS009. Pharyngeal length is progressively restored to normal by increasing amounts of RA. Each bar represents the average of 10 larvae. Error bars represent ±one sd.