#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)
  supertype:  #cell_division__cellular_division  the process in reproduction and growth by which a cell divides to form daughter cells
  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
  part:  #anaphase  the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
  part:  #karyokinesis  organic process consisting of the division of the nucleus of a cell during mitosis or meiosis
  part:  #metaphase.phase_of_cell_division  the second stage of meiosis
  part:  #prophase.phase_of_cell_division  the first stage of meiosis
     part:  #diakinesis  the final stage of the prophase of meiosis
     part:  #diplotene  the fourth stage of the prophase of meiosis
        part:  #crossing_over__crossover  the interchange of sections between pairing homologous chromosomes during the prophase of meiosis
     part:  #leptotene  the first stage of the prophase of meiosis
        part:  #synapsis  the side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis
     part:  #pachytene  the third stage of the prophase of meiosis
     part:  #synizesis__synizesi__synezesis__synezesi  the contraction of chromatin towards one side of the nucleus during the prophase of meiosis
     part:  #zygotene  the second stage of the prophase of meiosis
  part:  #segregation.organic_process  (genetics) the separation of paired alleles during meiosis so that members of each pair of alleles appear in different gametes
  part:  #telophase.phase_of_cell_division  the final stage of meiosis when the chromosomes move toward opposite ends of the nuclear spindle

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