Grazing thin section through the nuclear envelope of a macronucleus. Nuclear pores are packed so tightly that they often form a hexagonal array with 6 pores surrounding a central pore. The pores often...

Free microtubule sliding in cnm67delta mutant cells expressing GFP-Tubulin (GFP-TUB1; left panel, green in right panel merge) and RFP-Spc97 (a component of the gamma-tubulin complex, marks the minus e...

A glancing view of the cortex of Conchophthirus reveals details of cortical structure. This includes the nature of the cell membrane and the alveolar membranes that reside immediately below the surfac...

A transverse section of the cortex of Conchophthirus curtus reveals details of cortical structure. This includes the nature of the cell membrane and the alveolar membranes that reside immediately belo...

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...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cdc20, a cell-cycle regulated activator of anaphase-promoting complex/cyclosome (APC/C) required for metaphase/anaphase transi...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cdc20, a cell-cycle regulated activator of anaphase-promoting complex/cyclosome (APC/C) required for metaphase/anaphase transi...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cdc20, a cell-cycle regulated activator of anaphase-promoting complex/cyclosome (APC/C) required for metaphase/anaphase transi...

Image shows a metaphase spread revealing the 46 human chromosomes (blue). Telomeres have been labeled using PNA-FISH and appear as pale dots at the ends of each chromatid.

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...