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Fig. 4. Profile of Caspase-dependent PCD in the embryonic CNS.
Activated-Caspase-3-positive cells in the wt embryonic CNS were counted in
abdominal hemisegments over the course of development. PCD in the CNS begins
at stage 11 and increases until stage 14. The levels remain high until the end
of embryonic development. Bars represent s.d.; n=36-51 (for all
stages). Developmental stages are indicated above the bars.