fluorescence microscopy results (B) showing the translation activities of the Cnot6l 3"-UTR (WT and CPE mutated) in GV- (maintained by 2 μM milrinone) or MII- (released from milrinone) arrested oocytes. GFP signal indicated translational activation of Cnot6l 3"-UTR. An in vitro transcribed and polyadenylated mCherry mRNA was co-microinjected as a positive control. Scale b 