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Figure Caption
Fig. 4 Apoptotic cell death in the plxna4ca307 hindbrain. (A–D) Representative hindbrain sections show TUNEL+ dying cells (arrows) in 24 (A, B) and 48 (D, E) hpf WT and mutant embryos. (C, F) Blinded quantitation of average number of TUNEL+ cells/section in the hindbrain of WT and plxna4ca307 embryos at 24 hpf (N = 5; WT n = 13; −/− n = 13; unpaired Student's t-test, P = 0.0251) and 48 hpf hindbrain and spinal cord (N = 2; WT n = 6, plxna4ca307 n = 5, unpaired Student's t-test HB, P = 0.4061. SC, P = 0.2889. D: dorsal, ov: otic vesicle, V: ventral. Scale bar in A is 75 μm.
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