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Figure 1


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.