title: Permanently polymorphic clones of duckweed as a model for study of some problems of developmental biology.
mesh_terms: D002999:Clone Cells; D008540:Meiosis; D008722:Methods; D008938:Mitosis; D008954:Models, Biological; D010641:Phenotype; D063245:Plant Development; D010944:Plants / Q000528:radiation effects; D011110:Polymorphism, Genetic; D011830:Radiation Effects; D012098:Reproduction; D012639:Seeds