Chlamydomonas algae. Light micrograph of samples of the Chlamydomonas rheinhardtii alga. The entire genome (genetic make-up) of this alga has been recorded. This is now finding applications in some areas of medical research, such as the attempts to find the genes responsible for the rare inherited lung disorder primary ciliary dyskinesia (PCD). Magnification: x1000 when printed 10cm high.