Fig. 1. Graphs showing relationships between flagellar connector movement and basal body migration in procyclic form trypanosomes. Electron micrographs of whole-mount cytoskeletons were analysed and the following cytological measurements recorded: (1) distance between basal bodies; (2) length of the old flagellum (OF); (3) length of the new flagellum (NF) and (4) distance of FC migration along the old flagellum. Measurements are expressed as a ratio to old flagellum length to account for individual variation in cell length. (A) Graph showing relationship between new flagellum length and inter-basal body distance. (B) Graph showing relationship between FC migration and new flagellum length. (C) Graph showing relationship between FC migration and inter-basal body distance.