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Denticle belt fusion phenotype of nej1; L8 double mutant embryos. Cuticle preparation of late-stage embryos photographed with dark-field optics; anterior is to the left. (a) nej1/Y embryo. (b) L8 embryo. (c and d) nej1/Y; L8 double mutant embryos showing head defects and fusions of segment denticle belts: fusion A2–A3 (c), fusion A3–A4 (d).
