Fig. 6. Caspase 3 like protein is expressed and activated during Ciona intestinalis metamorphosis. Comparative western blot analysis of Ciona tissue homogenates, with antibody against human caspase 3. Coomassie Blue-stained gel (CB) showing the total proteins from Ciona (top). Western blotting (WB) was performed at various stages of embryonic development and metamorphosis (bottom).