FAP74ami transformants have slow and uncoordinated flagella with abnormal waveforms. Montage of sequential frames from high speed recordings. Elapsed time in seconds is denoted on each frame. (A) WT cell displaying normal waveforms of two coordinated flagella (see Video 1). (B) 1G11 cell displaying uncoordinated flagellar movements. The right flagellum beats first, followed by the left flagellum. The corresponding waveform traces show an incomplete effective stroke and the lack of a normal recovery stroke (see Video 2). (C) 1G11 cell displaying uncoordinated flagella. The left flagellum completes two beats in the same time the right flagellum completes one effective stroke. The waveform traces also show the failure of the left flagellum to complete an effective stroke before beginning the recovery stroke. Examples of FAP74ami transformants 2D4 and 7A4 swimming can be seen in Videos 3 and 4, respectively.