abnormal phenotype cell population viability loss of viability following cell cycle arrest at mitotic G2/M phase transition decreased viability following cell cycle arrest in mitotic G2 phase loss of viability following mitotic G2/M arrest Use this term to annotate experiments in which a culture is grown under conditions that arrest at the G2/M phase transition (e.g. restrictive temperature for a cdc mutant), and then the number of cells viable enough to form a colony upon return to conditions supporting vegetative growth is measured and compared to wild type. FYPO:0006522 A cell population phenotype in which a smaller than normal proportion of cells in the population remains viable after arrest at the mitotic G2/M phase transition of the mitotic cell cycle. reduced viability following cell cycle arrest at mitotic G2/M phase transition 2018-04-25T15:17:55Z loss of cell population viability following cell cycle arrest at mitotic G2/M phase transition midori loss of viability of mitotic G2-arrested cells