(A) Pol II occupancy at mig-38 (poised, ubiquitous) versus ceh-22 and T06D8.3 (poised, foregut) in smg-1 control versus pha-4(ts) embryos, normalized to eft-3 (set at 1) and srw-99 (set at 0). Error bars indicate n = 3 replicates, mean ± SEM. (B) mRNA abundance (quantitative RT-PCR) for mig-38, ceh-22, and T06D8.3 for wild-type or pha-4(ts) embryos early (E) or mid (M). n = 3 replicates, mean ± SEM. (C) Gene expression profiles from (20). Early stage (dark gray arrowhead) is at the fifth and sixth AB-div. Mid-stage (light gray arrowhead) is equivalent to ventral enclosure.