Phosphorus has a characteristic electron energy loss with an edge at 160 eV. The Zeiss 902 electron microscope permits images to be recorded at different energy losses which can be digitized and proce...

FIG.2A Changes in ER cluster morphology require gamete fusion.

Distribution of Bib1, BubR1 and Mad2(red) on chromosomes assembled from sperm chromatin in nocodazole treated Xenopus oocyte extracts in vitro. Chromosomes are stained with DAPI (blue). Right panels ...

Effect of depletion of the Nup107-160 nucleoporin on spindles assembled in vitro with sperm chromatin and in Xenopus oocyte extracts. Spindles are labeled with tubulin (red) and chromosomes are staine...

Effect of depletion of Nup133 and Nup43 by antibody addition on spindle assembly on sperm chromatin in Xenopus oocyte extract. Spindles (red) were localized by addition of tubulin-rhodamine and chrom...

An oocyte in a mature follicle. During the menstral cycle in females the ovary produces oocytes, which develop in follicles. As the follicle matures it increases in size, different cell types are recr...

Phosphorus has a characteristic electron energy loss with an edge at 160 eV. The Zeiss 902 electron microscope permits images to be recorded at different energy losses which can be digitized and proce...

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 ...

Upon electron bombardment, some elements, such as P, show an electron energy loss profile with a peak at a specific energy loss value. By collecting a series of images of a field at different energy l...

Upon electron bombardment, some elements, such as P, show an electron energy loss profile with a peak at a specific energy loss value. By collecting a series of images of a field at different energy l...