| 单词 | 核仁 |
| 释义 | 〔nucleolus〕A small, typically round, granular body composed of protein and RNA in the nucleus of a cell, usually associated with a specific chromosomal site and involved in ribosomal RNA synthesis and the formation of ribosomes.核仁：小而常为圆形的颗粒体，由蛋白质和细胞核中的核糖核酸构成，通常与一特定染色体缔合有直接关系并涉及核糖体核糖核酸的合成和核糖体的形成〔nutmeat〕The edible kernel of a nut.核仁：坚果的可食的仁〔diakinesis〕The final stage of the prophase in meiosis, characterized by shortening and thickening of the paired chromosomes, formation of the spindle fibers, disappearance of the nucleolus, and degeneration of the nuclear membrane.丝球期：有丝分裂的最终阶段，以二价染色体的收缩、纺缍形纤维的形成、核仁的消失以及核膜的退化为特点〔karyosome〕An irregular aggregation of chromatin in the nucleus of a cell not undergoing mitosis. Also called net knot 染色质核仁，染色中心：不进行有丝分裂的细胞核中染色质的不规则集体 也作 net knot〔pignut〕Either of two deciduous trees(Carya glabra or C. ovalis) of the eastern United States, having pinnately compound leaves, male flowers grouped in catkins, and nuts with somewhat bitter kernels. 光滑山核桃树：美国东部的两种落叶树的一种（山核桃属 光滑山核桃 或 山核桃属 甜山核桃） ，有羽状复叶、柔荑花序的雄花和核仁带有苦味的坚果 |
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