Fig. 5. Electron microscopy showing the attachment site of the axial elements (AEs) of the synaptonemal complex (SC) of autosomal bivalents to the nuclear envelope (NE) in 22-day-old wild-type (A) and Lmna^–/– (B) littermates. Both telomeric attachments are structurally undistinguishable. Scale bars: 0.2 µm.