Fig. 10. Electron microscopy of Drosophila embryos 48 hours after the microinjection with dsRNA specific for lamin Dm0. Electron micrographs of ultrathin sections show two nuclei with altered morphology (A,B) showing clustered pore complexes in the nuclear envelope (brackets) and areas where the outer and inner nuclear membrane has been separated (arrowheads) or where the nuclear envelope is ruptured (A, arrows). Scale bars, 0.5 µm.