The figure shows the beginning of the cytopharyngeal ribs of the ribbed wall. The peristome is bordered on one side by the paroral kinety that has 2 rows of basal bodies, of which only one is ciliated...

A frame from the grouped movie of a Balamuthia mandrillaris ameba within a culture of monkey kidney cells. Accompanying photographs are enlargements of the tips of pseudopodia to demonstrate their fle...

The plastids of plants germinated in the dark are termed etioplasts and possess quasi-crystalline structures termed prolammelar bodies that contain the phospholipid materials and chlorophyll precursor...

Transmission electron micrograph of isolated HeLa cell metaphase chromosome decondensed by removal of histones with dextran sulfate and heparin, centrifuged onto a carbon film and stained with uranyl ...

Transmission electron micrographs of whole metaphase chromosomes isolated from Chinese Hamster Ovary (CHO) cells showing the characteristic paired chromatids and centromeric constrictions.

This section is cut at a level where the macronucleus is folded so it appears to be in 2 parts and where the micronucleus is visible. Contractile vacuole, perioral kinetids, and the peristome is evide...

Purple sea urchin embryos undergoing mitosis. Embryos are expressing GFP-rhotekin GTPase binding domain, which is a probe for active Rho, with 3xmCherry-Ensconsin (a microtubule asociated protein sho...

The undulating membrane is composed of two rows of basal bodies but only the outer row is ciliated. Both basal bodies are fully formed but only the ciliated member has an axosome and 9 + 2 axoneme. Th...

Transmission electron micrograph of the salivary gland of the tick Rhipicelphals appendiculatus illustrating the dramatic difference in nuclear size seen in different cell types. Here, the large (prob...

This animation shows a nucleosome located in its putative binding site on the SWI-SNF remodeling complex from yeast. The atomic structure of the DNA component of the nucleosome based on x-ray diffrac...