Twin spots as evidence for mitotic crossing-over in Aspergillus induced by ultraviolet light.
D001230:Aspergillus / Q000166:cytology* / Q000528:radiation effects; D003434:Crossing Over, Genetic; D005827:Genetics, Microbial; D008938:Mitosis; D011831:Radiation Genetics; D014466:Ultraviolet Rays