Amphibian oocytes have many copies of rRNA genes that are actively transcribed. Newt oocyte nuclei were dissected, allowed to swell in a low ionic strength high pH buffer, centrifuged through a sucros...

Details of the Golgi apparatus seen in 40 nm epon sections of Ptk tissue culture cells after plunge freezing,and freeze substitution. Image recorded at 28,500x with a Philips CM10 TEM operated at 80KV

Details of a cryofixed Ptk tissue culture cell showing Golgi apparatus, mitochondria and a segment of nucleus with nucleolus at right. 40 nm epon section prepared from plunge frozen,and freeze substit...

Amphibian oocytes have many copies of rRNA genes that are actively transcribed. Newt oocyte nuclei were dissected, allowed to swell in a low ionic strength high pH buffer, centrifuged through a sucros...

This electron micrograph shows the basal lamina as a thin gray moustache following parallel along the basal membrane of epithelial cells from human corneal epithelium. In this tissue, the basal lamin...

Figure 410 from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Chromosomal microtubules in midanaphase of mitotic division in Polomyxa. Image by Evans...

Figures 424 (upper) and 425 (lower) from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. The nucleus and adjacent the manchette rodent spermatids. The ...

This electron micrograph shows the basal lamina along the midgut epithelium of the flea. Unlike the vertebrate basal lamina, which appears as a homogenous layer, the basal lamina in insects often app...

Electron micrograph of a nerve from the mesentery of a rat shows groups of unmyelinated axons wrapped by deeply invaginating Schwann cells in cross section. Surrounding the Schwann cell wrapping is a ...

Figure 411 from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Microtubules associated with the midbody in telophase of mammalian cell division. This ...