Fig. 1. Ptc is required for head capsule morphogenesis. Wild-type adult normal head is shown in A, the head capsule formation defects in ptc^hdl/ptc^IN108 pharate adults are shown in B (mild head deformation with a frontal median cleft and loss of antenna), C (moderate phenotype with unilateral loss of head case) and D (severely reduced head with tiny eyes attached to the thorax). (E) A ptc^gal4/ptc^IN108 individual. (F) The head capsule defect in the mitotic clones of ptc^IN108/ptc^IN108 (in ptc^IN108/+ background).

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