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Figure 5


Fig. 5. Cell proliferation and apoptosis in zebrafish gills. (A) Immunohistochemistry of mitotic cells in normal and cold-acclimated gills. (B) Western blot analysis of phosphohistone H3 (pH3) expression in normal and cold-acclimated gills. (C) TUNEL assay for apoptotic cells in normal and cold-acclimated gills. Cold acclimation retarded both cell proliferation and apoptosis.