C. The immunofluorescence of F-actin (red) and TPX2 (green) in WT and Erk1/2oo-/- oocytes, using DAPI (blue) co-staining (n=15-20 oocytes for each group). The zoomed images of F-actin are displayed in gray. Scale bar=10 µm. D. The box plot summarizing the relative intensities of F-actin between control and ERK1/2oo-/- oocytes (n=7-10 oocytes for each group). 