You're viewing this item in the new Europeana website. View this item in the original Europeana.

Oogenesis in Drosophila ovariole

A Drosophila ovariole showing the polar follicle cells and stalks that separate the adjacent cysts. The series of germline cysts (green, BicD) progress through oogenesis as they move posteriorly. The cysts are born at the anterior of the ovariole, and become surrounded by follicle cells (blue - FasIII) as they exit the germarium. Each cyst contains 16 germ cells. One of these is selected to becomeā€¦