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Figure 4


Fig. 4. The FPC is disorientated as soon as cells fail to assemble a normal flagellum. (A-B) Scanning electron microscopy of untreated non-induced (A) and 48-hour-induced IFT140RNAi cells (B). In controls (A), the two flagella emerge from separate FPCs that are parallel. In cells that possess an old flagellum and an aberrantly short new flagellum (B), the orientation of the FPC associated with the new flagellum is not fixed relative to the long axis of the cell nor to the orientation of the FPC of the old flagellum. Arrows show the FPC, and arrowheads indicate the flagellar sleeve present in IFT mutants.





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