title: Assay of Chlamydomonas phototaxis.
mesh_terms: D000818:Animals; D002696:Chlamydomonas / Q000502:physiology / Q000528:radiation effects*; D007091:Image Processing, Computer-Assisted; D007834:Lasers; D008027:Light; D008853:Microscopy / Q000295:instrumentation; D009068:Movement; D014743:Videotape Recording / Q000295:instrumentation / Q000379:methods*