#cell_division__cellular_division  the process in reproduction and growth by which a cell divides to form daughter cells
  supertype:  #organic_process__organicproces__biological_process  a process occurring in living organisms
  subtype:  #amitosis  the direct method of cell division characterized by simple division of the nucleus without formation of chromosomes
  subtype:  #segmentation__cleavage  (embryology) the repeated division of a fertilised ovum
  subtype:  #meiosis__miosis__reduction_division__reductiondivision  (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
     subtype:  #nondisjunction  meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells
  subtype:  #mitosis__mitosi  cell division in which the nucleus divides into nuclei containing the same number of chromosomes

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