Exposure of cells to adverse environmental conditions invokes a genetically programmed series of events resulting in the induction of specific genes .
exposure of cells to adverse environmental conditions invokes a genetically programmed series of events resulting in the induction of specific genes .
O O O O B-other_name I-other_name I-other_name O O O O O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group O