Figure 3.—

Rescue and phenocopy of the mig-6(et4) and mig-6(sa580) twisted pharynges. (A-I) The pharynges of the indicated genotypes were photographed to emphasize the presence or absence of a pharyngeal twist in the isthmus. pZH125 is a plasmid bearing a mig-6S minigene, pZH117 is a plasmid bearing a mig-6L minigene, and pQC10.1 and pQC10.2 are modified versions of pZH125 in which the et4 and sa580 mutations, respectively, were introduced. Bar, 20 μm. The angle θ is that formed by the torsion lines and the anterior–posterior axis.