Fig. 6. Chromosomal distribution of germline- and sex-regulated genes. The ratio of genes in each gene set observed on each chromosome, relative to the expected number for the number of genes per chromosome on the microarray, was plotted. Any statistically significant deviation of observed from expected is marked by an asterisk (P<0.001; hypergeometric probability test). See http://wormgermline.yale.edu for corresponding table with numbers of each gene set on each chromosome.