High Voltage (1MeV) EM image of metaphase arrested CHO cell squashed in 3:1 acetic acid:ethanol and transferred to an EM grid. Portions of several chromosomes are seen. This micrograph was captured at...

High Voltage (1MeV) EM image of a metaphase chromosome isolated from CHO cells using a non-aqueous technique, squashed in 1:1 acetic acid:ethanol and transferred to an EM grid. A chromatid pair occupi...

High Voltage EM image of CHO metaphase chromosomes from a 'thick' section of metaphase-arrested cells treated with D20 to stabilize microtubules. This image was recorded with a specimen tilt of 55 deg...

Amphibian oocytes have many copies of rRNA genes that are actively transcribed. Newt oocyte nuclei were dissected, allowed to swell in a low ionic strength high pH buffer, centrifuged through a sucros...

The events of meiosis I in a living insect spermatocyte beginning at metaphase with bivalents at the spindle equator, followed by anaphase onset, chromosome segregation and the start of cytokinesis. T...

Movie of meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis that have been experimentally flattened. Time-lapse polarization microscopy using a Nikon Microphot SA, equipped for...

Movie showing the dynamics of kinetchore microtubules during meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis that were experimentally flattened. Time-lapse polarization micros...

Time lapse movie showing several sequences of mitosis in pollen mother cells of the Easter Lily recorded in 1951 on 16 mm film with an early polarizing microscope developed by Shinya Inoue. The work w...

Movie of anaphase A and B of meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis. Time-lapse DIC microscopy using a Nikon Microphot SA, equipped for liquid crystal polarized lig...

The events of meiosis II in a living insect spermatocyte beginning at the completion of prophase II through the comletion of cytokinesis. Testes from the Crane fly Nephrotoma suturalis were observed w...