Transmission electron micrograph of Leydig cell nucleus from the domestic boar contains a region (arrow) thought to represent the single X chromosome which is largely heterochromatic. The chromosome i...

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...

Electron micrograph of epithelial cells of the parotid gland of the gerbil, prepared by rapid freezing and freeze substitution. Microvilli and microplicae, which expand the extracellular surface alon...

Electron micrographs show examples of pinocytosis in endothelial cells of blood vessels in the cat myocardium (panels A,B,C and H), and from the choroid rete of the bowfin fish eye. Both types of cell...

This transmission electron micrograph of a section through a late orthochromatic erythroblast (normoblast) from human bone marrow shows shallow depressions along the membrane surface, indicated by arr...

Figure 295 from Chapter 11 (Melanin Pigment) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Formative stages of melanosome development are apparent in this example from a human fetus. In these early ...

Scanning electron micrograph montage of cultured HeLa cells. This image is a montage of six overlapping fields of view, each photographed at 2,231x with a 17.8mm working distance and an accelerating v...

Electron micrograph of a thin section of fixed, embedded stained cells of Peranema trichophorum. Shown is a section of the "rodorgan', a bundle of 13-protofilment microtubules with pseudo-hexagonal sy...

Drosophila melanogaster thoracic tergotrochanter muscle from a four week-old wild-type animal. A longitudinal section of myocyte is displayed. Sections of parallel myofibrils are seen with distinguish...

Metaphase-arrested CHO cells were swollen in 75 mM KCL, fixed with formaldehyde, post-fixed with OsO4, embedded, and 0.25 micron sections examined by High Voltage EM. Seen is a longitudinal section th...