Time lapse movie of a developing sand dollar embryo expressing GFP-histone H2B. The movie shows several rounds of mitoses.

Transmission electron micrograph of cell division in an insect spermatocyte captured in late anaphase - telophase with cytokinesis in progress. The homologous chromosomes appear as darkly stained disc...

Sand dollar embryos expressing GFP-H2B going thru stages of mitosis.

Sand dollar embryos expressing GFP-H2B going thru stages of mitosis. Video is animated with the cursor indicating the stages of mitosis and the morphological characteristics of the stage during the t...

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...

Confocal micrograph showing a dividing cancer cell (HeLa) in time-lapse. Cellular structures have been visualised in cyan (cell membrane) and red (DNA). The spiral arrangement captures the journey of ...

Transmission electron micrograph of a dividing myelocyte from the slender salamander Batrachoseps attenuatus showing mitotic chromosomes at late prophase.

Ancistrum is a marine ciliate that inhabits the mantle cavity of mytiliid mussels. This image shows a good view of the macronucleus, mitochondria with tubular cristae, and what are probably flask-shap...

This section of Conchophthirus is at the edge of the cortex showing the striated fibers and microtubules that attach to ciliated basal bodies. In particular, enlarged glancing longitudinal views of bo...

Vestibular kinities and the cortical architecture adjacent to the oral apparatus of Conchophthirus curtus. The negative magnification is 15,500X. The raw film was scanned with an Epson Perfection V750...