title: Photochemical survival principle in molecular evolution.
mesh_terms: D000388:Air; D005075:Biological Evolution; D008027:Light; D008954:Models, Biological; D008967:Molecular Biology; D010777:Photochemistry; D010788:Photosynthesis; D013472:Sunlight; D013997:Time Factors; D014466:Ultraviolet Rays