Functional enrichment of noisy genes showing distinctive bursting patterns of gene expression in mouse ES cells. (A) The mean of kon,iand koff,i(± S.E.) for the top and bottom 3,000 genes sorted by koff,i/ kon,i. (S.E. = standard error). (B) The Benjamini corrected P values of the 18 GO terms enriched in the top or bottom 3,000 genes. GO, gene oncology.