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Bifurcation of the caudal end of notochord in BMP and non-canonical Wnt mutants. (A-C) Lateral view of expression of flh, marking the caudal end of notochord in wild-type, mfn and kny zebrafish embryos fixed at 24 hpf. flh is expressed in the secondary tail of mfn (B) and kny (C) mutants.
