Fig. 4. sqd mutant oocytes display polarity defects in early oogenesis. In early wild-type egg chambers, Grk protein (A, red), Orb protein (C, green) and -tubulin (E) form a cap at the oocyte posterior, while in sqd^j4B4 germline clones, Grk (B, red), Orb (D, green) and -tubulin (F) are more evenly distributed throughout the cytoplasm of stage 2-6 oocytes.