High resolution view during division showing the micronucleus contains internal microtubules as well as a layer of b-tubulin, not in microtubular form, on or just inside the nuclear envelope. The sect...

Distribution of phosphorylated H2AX occurs preferentially in open chromatin. Wildtype mouse embryo fibroblasts were treated with the histone deacetylase inhibitor trichostatinA 8 hours before being in...

Transmission electron micrographs showing the unusual configuration of nucleoli in Sertoli cells, with smaller, highly dense spherical bodies flanking a large central body. Upper micrograph from guin...

Like other ciliates two types of nuclei are present. A germinative micronucleus and a RNA-producing macronucleus. Both have nuclear envelopes with pores and both have ribosomes attached to their outer...

Transmission electron microscope image of a region in the Drosophila germarium. Specific cells in the germarium contain synaptonemal complex in their nuclei.

This light micrograph shows the outside edge of two seminiferous tubules of a mouse testis. This section is a 1um thick transverse section, stained with toluidine blue to highlight the cells, with the...

Figure 366 from Chapter 15 (Cytoplasmic Inclusions) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Intranuclear crystals of Reinke in a human Leydig cell. Image courtesy of Wolf Fahrenbach. A PDF cop...

Transmission electron micrograph of an alveolar macrophage which contains E2, a fluorocarbon. This macrophage is from a mouse which liquid breathed that fluorocarbon for 3 hours and was allowed to rec...

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 microscope image of synaptonemal complex in nuclei of Drosophila germarium cell.