Figure 3From: Downregulation of both gene expression and activity of Hsp27 improved maturation of mouse oocyte in vitroOocyte classification by Annexin-V staining. (A) necrotic oocytes. Discontinuous green signal was originated from the remnant portions of the membrane. (B) Oocyte Annexin-V negative: no signal in the cytoplasmic membrane. (C) Annexin-V positive (early stage of apoptosis): a clear green signal is observed in the oocyte membrane. Bars = 10 μm.Back to article page