Figure 6
From: Unfertilized frog eggs die by apoptosis following meiotic exit
Stability of progesterone-treated and intact Xenopus oocytes. Defollliculated OR-2 buffer-deposited oocytes were treated with 10 μM progesterone or left untreated and monitored over 72 hours. Morphology of the progesterone-treated (a) and -untreated (b) oocytes, MAPK phosphorylation state (c), and time course of GVBD (d) after progesterone addition.