Electron micrograph of a cultured Drosophila DL1 cell infected with flock house virus, prepared by high pressure freezing followed by freeze substitution. This cell was prepared as part of an experime...

Anterior and posterior regions of a C. elegans embryo are determined by PAR protein distribution. PAR-2, shown in green marks the posterior region of the embryo and PAR-6, shown in red, marks the ante...

This movie illustrates the early division up to the four-cell stage of a C. elegans embryo depleted of npl-4 through RNAi. The first C. elegans embryonic division of the P0 zygote is asymmetric and ge...

Image shows a z-series immuno-FISH of a mouse ES cell carrying a multi-copy alpha-globin BAC insertion: HP1 gamma immunostaining (blue) is shown relative to BAC FISH signal (red) versus combined lac o...

Zebrafish Notogenesis and Early Neurulation. Mediolateral intercalation produces convergent-extension of the notochordal rudiment. Cells within the center of the notochord elongate and are incorporate...

This time lapse series illustrates the early division up to the four-cell stage of a C. elegans embryo expressing YFP::CDC-48 by DIC and fluorescence microscopy. YFP::CDC-48, like YFP::UFD-1 and YFP::...

z-series image of mouse ES cells with a multi-copy alpha-globin BAC insertion. H3K9me3 (blue) marks the heterochromatic core which largely colocalizes with combined FISH signal from the lac operator ...

The time-lapse movie shows early development in the Lytechinus (sea urchin) embryo. Polarizing microscopy highlights the mitotic spindles which may show bright or dark contrast according to their orie...

Image shows an immuno-FISH z-series of a mouse ES cell carrying a multi-copy insertion of alpha-globin BAC showing partial co-localization of lac operator FISH signal (green) with H3K9me3 immunostaini...

z-series image of 3D immuno-FISH of multi-copy alpha-globin BAC insertions in a mouse ES cell. Immunostaining of HP1alpha (blue) is shown versus FISH signals against total BAC sequence (red) or combi...