Transmission electron micrograph of a bone marrow orthochromatic erythroblast from guinea pig showing terminal differentiation in erythrocyte formation. Accompanying the cessation of most transcriptio...

Surface rendered models of chromatin organization from tomogram derived from a TEM image of epon section of a freeze-substituted mouse retina. (C) shows the region boxed in CIL:39743 where 4 regions o...

Transmission electron micrograph of the dense fibrous nuclear lamina (here labeled 'nuclear sheath')closely adpressed to the inner membrane of the nuclear envelope(arrow)in an intestinal epithelial ce...

Transmission electron micrograph of a section of a human polymorphonuclear neutrophil from circulating blood. Neutrophil nuclei are often lobed, as seen in the electron micrograph and light micrograph...

3T3 cells, 5min after the induction of DNA damage by microirradiation with a 405 laser. Cells were immunostained with antibody against H3K9me3 (green), a post-translational histone modification enric...

Transmission electron micrograph of glutaraldehyde fixed pancreatic acinar cell showing the characteristic features of nuclear chromatin with this preparative method. Darkly staining heterochromatin (...

Transmission electron micrographs showing details of nuclear pores in thin sections of an erythroblast (above) and endothelial cell (below). Pores appear to be filled with dark staining material in th...

Image shows a z-series of a mouse ES cell carrying an alpha-globin BAC transgene array (clone 1c) hybridized with probes against the lac operator repeat (green) and the entire alpha-globin BAC sequenc...

Image shows a z-series immuno-FISH of a mouse ES cell carrying a multi-copy alpha-globin BAC insertion: HP1 gamma immunostaining (blue) is shown relative to BAC FISH signal (red) versus combined lac o...

High resolution image of the macronucleus of Coleps hirtus. Heterochromatin and nucleoli are seen as smaller and larger stained bodies, respectively, in the macronucleus. Many nuclear pores exist in t...