单词 | nondisjunction |
释义 | nondisjunction (extremely rare) n WORD FAMILY disjunction: disjunctions, disjunctive, nondisjunction+/disjunctive: disjunctively n meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells Hyper meiosis, miosis, reduction division (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) |
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