The intracellular mobility of MeCP2 (a methylated DNA-binding protein) followed in a mouse fibroblast stably expressing GFP-MeCP2 through a time series of images captured by confocal microscopy after ...

Transmission electron micrograph of nucleus showing the characteristic features of glutaraldehyde fixation introduced as a primary fixative in 1962 and since used routinely. Chromatin appears differen...

In the upper panel, transmission electron microscopy reveals a tangled mass of ~30nm diameter nuclear chromatin fibers when the contents of the nucleus from erythrocytes of the newt Notophthalmus viri...

High Voltage transmission electron micrograph of human female (HeLa) mitotic chromosomes from metaphase arrested cell swollen in hypotonic medium and recorded at 1 MeV. This image was taken with a sp...

Transmission electron micrograph of transcription of tandemly arranged ribosomal RNA genes. Amphibian oocyte nuclei contain numerous extra-chromosomal nucleoli, each of which contains a tandem array o...

The image shows a mouse spermatocyte in meiosis immuno-labeled for two components, SYCP3 (red) and SYCP1 green) of the synaptonemal complex. The red and green signals have been offset to facilitate vi...

High Voltage transmission electron micrograph of human female (HeLa) mitotic chromosomes from metaphase arrested cell swollen in hypotonic medium and recorded at 1 MeV. This image was taken with a sp...

Daughter micronucleus in anaphase of a dividing cell of Didinium nasutum. The chromosomes are compacted into one large heterochromatic body. Remnants of the mitotic division spindle remain inside the ...

Transmission electron micrograph illustrating the accumulation of dense heterochromation that accompanies terminal differentiation in may cells. Shown here is a section through a polychromatophilic er...

Upper panel shows a transmission electron micrograph featuring the nuclear envelope with the nuclear lamina seen here as a uniform layer between the inner nuclear membrane and more darkly staining blo...