| 单词 | primary constriction |
| 释义 | > as lemmasprimary constriction primary constriction n. Genetics a cytologically defined chromosomal constriction associated with and determined by the centromeric region. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > centromere > parts associated with prochromosome1905 primary constriction1932 1932 C. D. Darlington Rec. Adv. in Cytol. 495 Primary or attachment constriction, that always associated with the spindle attachment. 1969 W. V. Brown & E. M. Bertke Textbk. Cytol. xviii. 344/1 This ‘constriction’ associated with the centromere is often loosely called the centromere, or kinetochore, but more exactly it is the primary constriction. 2003 Current Opinion in Genetics & Devel. 13 191/1 The centromere is the locus responsible for the segregation of chromosomes during mitosis and meiosis... The kinetochore complex assembles at this site and in many organisms is visible as the primary constriction. < as lemmas |
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