Nucleolus

Japanese: nucleolus
Nucleolus

...Chromosomes that lack a centromere cannot undergo any movement and are left behind in the cytoplasm and disappear, while chromosomes with two or more centromeres frequently form chromosome bridges during anaphase, as each centromere randomly selects a pole to which it will move, resulting in breakage or being left behind in the cytoplasm. (3)Nucleolus Small spherical structures called nucleoli are found in interphase nuclei. These nucleoli are attached to sites called nucleolus organizer bodies of specific chromosomes, as can be seen by observing nuclei in prophase or anaphase or telophase. ...

*Some of the terminology explanations that mention "nucleolus" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…動原体を欠損した染色体はいずれの移動も行いえず,細胞質にとり残されて消失するし,二つ以上動原体をもつ染色体は後期移動において,それぞれの動原体が機会的に移行する極を選択するため,高い頻度で染色体橋を形成し,そのため,切断したり細胞質にとり残されたりする。(3)仁形成体 仁nucleolusと呼ぶ球形の小構造が中間期の核に見られる。この仁は特定染色体の仁形成体と呼ぶ部位に付着していることが,細胞分裂前期または後・終期の核の観察によって確かめられる。…

※「nucleolus」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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