Fig. 3. Thin-section electron micrographs of wild-type Chlamydomonas axonemes (WT), cpc1-2 axonemes and axonemes from cpc1 cells transformed with plasmid ES10 [cpc1-2(ES10)]. Diagram to the right summarizes central pair structures as seen in cross sections (modified from Mitchell and Sale, 1999). Central pair structures missing in cpc1 are fully restored in transformants (arrows). Bar, 100 nm.