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In control (A, D), GV (B, E) & MI (C, F) stage oocyte after IVM. Microvilli are numerous and long on the oolemma of oocytes. A rim of electron-dense cortical granules (arrows) is seen just beneath the oolemma of oocytes. ZP = zona pellucida; mv = microvilli; CG = cortical granules; O = oocyte; PVS = perivitelline space; PB = polar body
