单词 | misdivision |
释义 | misdiˈvision [mis-1 4.] a. An incorrect division.
1890Cent. Dict. s.v., Newt, newte, an erroneous form due to misdivision of an ewte. 1905Jespersen Growth Eng. Lang. 73 The result being the same misdivision of the word. b. spec. in Cytology. The abnormal transverse (instead of longitudinal) division of a centromere at meiosis or mitosis.
1939C. D. Darlington in Jrnl. Genetics XXXVII. 341 (heading) Misdivision and the genetics of the centromere. Ibid. 346 Misdivision in..107 univalents consisted of the centromere dividing into two halves, as it does normally; but to these halves the wrong chromatids were attached or no chromatids at all. Ibid., The simplest misdivision is that where two short arms are carried to one pole, two long arms to the other. 1972tr. J. Sybenga's Gen. Cytogenetics v. 223 It happens occasionally that the centromeric region breaks up (mis-division), which results in two half chromosomes (the arms) each with a part of the centromere. Ibid., After centromere mis-division, functional telocentric chromosomes may arise. |

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