The division furrow of a dividing Didinium. A thick layer of epiplasm coated on the cytosolic side by mitochondria forms the constricting ring in the furrow. As usual mucocysts lie between the epiplas...

Transmission electron micrograph of section through the macronucleus of Nassula sp containing many darkly staining nucleoli.

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 (...

TEM images of reconstituted chromatin prepared from 12-mer tandem repeats of a strong nuclear positioning sequence and purified histones. Samples were fixed with glutaraldehyde, applied to carbon film...

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...

An image of the nucleoli of the macronucleus. Nucleoli have a core of DNA that contains the genes that are transcribed into ribosomal RNA. Assembly of the ribosomal subunits from this processed RNA an...

The division furrow of a dividing Didinium. A thick layer of epiplasm coated on the cytosolic side by mitochondria forms the constricting ring in the furrow. As usual mucocysts lie between the epiplas...

TEM images of reconstituted chromatin prepared from 12-mer tandem repeats of a strong nuclear positioning sequence and purified histones. Samples were compacted in the appropriate salt, and mildly cro...