Transmission electron micrograph illustrating the 'classic' appearance of the nucleus in osmium tetroxide fixed material. In this pancreatic acinar cell nucleus, the only prominent feature is the lar...

Transmission electron micrograph of a cross section through the nucleolus from a Chinese hamster spermatogonium revealing a complex distribution of regions of varying granular textures.

Transmission electron micrograph illustrating the unusually prominent fibrous nuclear lamina (arrows) seen in many invertebrates such as this leech ganglion cell. From Fawcett (1966) Am J. Anat. 119:...

Mouse 3T3 fibroblast shown in phase contrast (left) and immuno-stained for the nucleolar protein nucleostemin (right, green).

A time lapse experiment of Saccharomyces cerevisiae expressing GFP-tagged NET1. NET1 is a core subunit of the RENT complex that involves in nucleolar silencing and telophase exit; stimulates transc...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP-tagged NET1. NET1 is a core subunit of the RENT complex that involves in nucleolar silencing and telophase exit; stimulates transc...

High resolution transmission electron micrograph of a portion of the macronucleus of Opercularia coarctata containing irregularly shaped heterochromatin bodies and elliptical nucleoli. Ribosome-like p...

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

Mouse 3T3 fibroblast stained for the nucleolar protein nucleostemin (left, green) and 28S rRNA (right, red).

A time lapse experiment of Saccharomyces cerevisiae expressing GFP-tagged NET1. NET1 is a core subunit of the RENT complex that involves in nucleolar silencing and telophase exit; stimulates transc...