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Fig. 5. Active caspase-3 immunoreactivity in the tadpole intestine varies with developmental stage. Intestines (duodenum) at different stages of metamorphosis were labeled in cryosections (A–C) with antibodies against active caspase-3 (green), smooth muscle (red), and nuclei counterstained with DAPI (white). (A) NF 58 tadpole. (B) Climax at NF 61. (C) The end of climax (NF 66). (Scale bar: 100 μm.) Image published in: Schreiber AM et al. (2005) Copyright © 2005. Image reproduced with permission of the publisher and the copyright holder. This is an Open Access article distributed under the terms of the Creative Commons Attribution License. Larger Image Printer Friendly View

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