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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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