| 单词 | restitution nucleus |
| 释义 | > as lemmasrestitution nucleus restitution nucleus n. [after German Restitutionskern (O. Rosenberg 1927, in Hereditas 8 321)] Genetics a cell nucleus having twice the regular chromosome number, formed by an uncompleted mitotic or meiotic cell division. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > other structures in mitosis sun figure1877 aster1879 linin1887 skein1889 spireme1889 tetraster1890 cytaster1892 astrosphere1893 mid-body1896 restitution nucleus1927 synaptonemal complex1958 1927 Hereditas 8 336 The semiheterotypic meta- and anaphase very often are not completed, but are interrupted by a premature homotypic division, whereby Restitution-nuclei are formed. 1950 Adv. Genetics 3 197 The zygoid chromosome number is restored through the fusion of two azygoid nuclei, the formation of a restitution nucleus or endomitosis. 1974 Euphytica 23 631 The diploid chromosome numbers..may result either from first or second division restitution nuclei of meiosis. 1993 Cell Biol. Internat. 17 945 In these cells the diplochromosomes were shown to originate from restitution nuclei. 2008 T. F. Stuessy Plant Taxon. (ed. 2) xvii. 220/1 The broad differences..between diplospory (unreduced embryo sac coming from a generative cell by mitosis or modified meiosis to yield an unreduced restitution nucleus) and apospory. < as lemmas |
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