Categories of genes enriched in the sensory neuron fraction. Genes were categorized according to the GO molecular function categories. (a) Categorization of all the genes on the microarray; (b) categorization of genes within the top 500 che-2::PABP/acr-5::PABP ranks. In both panels, the fraction of genes in each category in respect of all annotated genes is shown.*P < 0.05; **P < 0.01 (binominal distribution).