A confocal image of dividing keratinocyte cells labelled with mitotracker (red), tubulin (green) and nuclei (Dapi-blue). Cells were part of a study of the effect of Papilloma viruses in keratinocytes.

The image shows a developing Drosophila spermatid immunostained for caspase activity (green). TRITC-phalloidin is used to label actin (red). Caspase is required in spermiogenesis for the elimination ...

The time-lapse movie made in 1974 shows meiosis in spermatocytes of Chrysochraon japonicas (grasshopper) as seen with the polarizing microscope. The principal birefringent components are the spindle m...

Transmission electron micrograph of capillary ventricular caveolea shown in a tangential section. Image made available by James D. Jamieson and the Department of Cell Biology, Yale University School ...

Transverse section through the neural tube of an early stage chick embryo. The brown stain shows the neurofilament in the axons of the commisural neurons (running down the sides of the neural tube) an...

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...

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.

Adult Caenorhabditis elegans (C. elegans) nematode imaged by DIC (differential interference contrast) microscopy. The angle of light allows for the visualization of many of the tissues in this living ...

Transmission electron micrographs showing chromosomes in dividing spermatogonia during metaphase in tissue from ram testis (upper panel) and as they begin to separate during early anaphase in tissue f...

Transmission electron micrograph of continuous endothelium from a rat diaphram capillary. Image aIso shows a reticulocyte in the capillary lumen. Image made available by James D. Jamieson and the De...