翻訳と辞書 Words near each other ・ Nucleo Operativo Centrale di Sicurezza ・ Nucleobase ・ Nucleobase cation symporter-1 ・ Nucleobase cation symporter-2 ・ Nucleocosmochronology ・ Nucleocosmogenesis ・ Nucleocytoplasmic large DNA viruses ・ Nucleofection ・ Nucleofuge ・ Nucleogenic ・ Nucleoid ・ Nucleolar phosphoprotein p130 ・ Nucleolar protein, member A1 ・ Nucleolaria granulata ・ Nucleolin ・ Nucleolus ・ Nucleolus organizer region ・ Nucleomorph ・ Nucleon ・ Nucleon pair breaking in fission ・ Nucleon spin structure ・ Nucleonica ・ Nucleophile ・ Nucleophilic abstraction ・ Nucleophilic acyl substitution ・ Nucleophilic addition ・ Nucleophilic aromatic substitution ・ Nucleophilic conjugate addition ・ Nucleophilic substitution ・ Nucleoplasm Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Nucleolus ： ウィキペディア英語版 Nucleolus The nucleolus (; plural nucleoli ) is the largest structure in the nucleus of eukaryotic cells, where it primarily serves as the site of ribosome synthesis and assembly. Nucleoli also have other important functions like assembly of signal recognition particles and playing a role in the cell's response to stress. Nucleoli are made of proteins and RNA and form around specific chromosomal regions. Malfunction of nucleoli can be the cause of several human diseases. == History == Until 1964 little was known about the function of the nucleolus, even though it could be easily seen through microscopy and was recognized as part of the nucleus. During that year, a study of nucleoli by John Gurdon and Donald Brown in the African clawed frog ''Xenopus laevis'' generated increasing interest in the function and detailed structure of the nucleolus. They found that 25% of the frog eggs had no nucleolus and that such eggs were not capable of life. Half of the eggs had one nucleolus and 25% had two. They concluded that the nucleolus had a function necessary for life. In 1966 Max L. Birnstiel and Hugh Wallace showed via hybridization experiments that genes within nucleoli code for ribosomal RNA. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nucleolus」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.