Fig. 2. Morphology of otd²/otd² and otd^2FL/otd^2FL embryos. (A-J) Compared to 10.5 and 16 d.p.c. wild-type embryos (A,F), otd²/otd² mutants exhibits a headless phenotype and normal body axis (B,G); while otd^2FL/otd^2FL embryos at 10.5 d.p.c. were classified on the basis of head abnormalities as severe (C), moderate (D,H,I) and mild (E,J). Abbreviations as in the previous figure.

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