(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 1. Early oogenesis in Drosophila. A diagram of the anterior
portion of a wild-type ovariole, including the germarium and four young egg
chambers (stages 1-4). Polar cells (green) and stalk cells (red) are shown
both at the precursor stage (near the germarium), and following their
differentiation. Oocytes are marked in blue throughout. fc, follicle cells;
post., posterior; ant., anterior.