rhizoid, and allows the cell to regenerate completely if its cap is removed. The caps of two Acetabularia may also be exchanged, even from two different species.
In the 1930s–1950s Joachim Hämmerling conducted experiments in which he demonstrated Acetabularia's genetic information is contained in the nucleus. This was the first demonstration that genes are encoded by DNA in eukaryotes; earlier studies by Oswald Avery and others had shown that this was true for prokaryotes.
Read more about Acetabularia: Etymology, Anatomy and Life Cycle, Hammerling's Experiment, Morphogenesis, Internal Chemical Gradients, Circadian Rhythms