Binding of histone modifications and RNA pol II in highly induced genes. ChIP-seq binding data for each of the histone marks is shown for select erythroid-specific genes known to be induced during differentiation (Foxo3, Epb4.1 [band 4.1], Hbb-b1 [β-globin], Alas2, Slc4a1 [band 3]). Light-colored peaks are in enriched CFU-Es, and dark-colored peaks in late erythroblasts. Numbers shown outside each graph are the scale of each graph (in normalized reads), and genomic scales (in kilobases) are shown for each gene above the set of graphs.