| 单词 | nuclear envelope |
| 释义 | > as lemmasnuclear envelope nuclear envelope n. Cell Biology the double membrane, composed of two lipid bilayers, which surrounds the nucleus of a eukaryotic cell; cf. nuclear membrane n. (a). ΚΠ 1953 N. G. Anderson in Science 15 May 517 (heading) On the nuclear envelope. 1963 Cold Spring Harbor Symp. Quantitative Biol. 28 1/1 [In prokaryotes] the nuclear equivalent does not show any chromosome-like structures, is not bounded by a nuclear envelope, and does not divide by mitosis. 1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) xiii. 763 At prometaphase, the nuclear envelope breaks down, allowing the microtubules from each centrosome to enter the nucleus and interact with the chromosomes. < as lemmas |
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