Fig. 2. Transmission electron microscopy (TEM) of telomere attachments in the wild-type mouse spermatocyte I nucleus. This TEM shows electron-dense lateral elements (LE) and the central element (CE) of the synatonemal complex (SC) terminate with a conical thickening (arrowheads) at the inner nuclear envelope (NE). An electron-dense plate connects the wide end of the LE thickening with the inner NE (indented arrow). Bar, 0.2 µm. Reproduced from Molecular Biology of the Cell (Liebe et al., 2004), with permission from The American Society for Cell Biology.