Apoptosis / Programmed Cell Death

Wild-type [top] and ced-1 mutant [bottom] embryos filmed for eight hours.  Cell deaths can be seen in both embryos as small "buttons". Some of these are marked by arrows near the end of the movie.  Cell corpses accumulate in the ced-1(e1735) embryo because phagocytosis of dead cells fails (Horvitz et al 1983, Ellis et al 1991, Zhou et al 2001).  


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