First cleavage of a live mouse zygote. Clear circles are the nuclei which are in a sea of granule dense yolk. The band around the two cells is the zona pellucida.

boi controls follicle stem cell proliferation. Germaria from boi[e] mutant in which germ cells (blue, anti-Vasa) and differentiating follicle cells (red, anti-Fas3) are labeled. Stalks between the ger...

The Hedgehog (Hh) pathway is activated in follicle stem cells of animals lacking boi (CIL# 13757), relative to wild-type Drosophila (this image), based on activated cubitus interruptus (ci) staining (...

Boi (red) localizes predominantly to apical cells in Drosophila wild-type germaria but not in germaria with UAS-boi[RNAi] expression (CIL#13742). Germ cells are identified using anti-Vasa (blue). Imag...

Boi (green) localizes predominantly to apical cells in Drosophila wild-type germaria but not in boi[e] mutant germaria (CIL#13740). Germ cells are identified using anti-Vasa (blue). Image is Fig 2B in...

Boi (green) no longer localizes predominantly to apical cells in Drosophila boi[e] mutant germaria (compare with CIL# 13739). Germ cells are identified using anti-Vasa (blue). Image is Fig 2C in J Cel...

Boi (red) localizes predominantly to apical cells in Drosophila wild-type germaria (CIL# 13741) but not in germaria with UAS-boi[RNAi] expression in apical cells (cells expressing UAS-boi[RNAi] also e...

Colorized scanning electron micrograph of an eggshell collected at 3900X magnification.

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 ...

Fluorescent micrograph of stage V-VI Xenopus laevis oocytes surrounded by thousands of follicle cells, as visualized by Hoechst staining.