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Figure 1


Fig. 1. (A) An elliptical section is formed if a perfect cylinder with longitudinal axis z', is cut at an angle {theta} to the x'y' plane. (B) The ellipse can be transposed onto the x'y' plane by a transformation, T{theta}, to generate a true transverse section. (C) A thin-section transmission electron micrograph showing a cross-section through a T. brucei flagellum. The section angle was corrected by the transformation T{theta} to generate a transverse section. (D) Ninefold rotation of the corrected axoneme shown in C. Bars, 50 nm.