Fig. 14From: Mutation and apoptosis are well-coordinated for protecting against DNA damage-inducing toxicity in DrosophilaA schematic diagram showing the process from the induction of cell damage to the formation of a cluster of mutated cells (spot). After treatment with a mutagenic factor, such as X-ray irradiation, damaged cells are considered to undergo mutation or apoptosis. The mutated cells proliferate and fill the empty areas left by the removed apoptotic cells, forming a cluster of mutated cells, i.e., a spotBack to article page