翻訳と辞書 Words near each other ・ Cytomelanconis ・ Cytomere ・ Cytometry ・ Cytometry for life ・ Cytometry Part A ・ Cytomics ・ Cytomixis ・ Cytoneme ・ Cytonix ・ Cytopathic effect ・ Cytopathology ・ Cytopenia ・ Cytophaga ・ Cytoplasm ・ Cytoplasm-to-vacuole targeting ・ Cytoplasmic determinant ・ Cytoplasmic hybrid ・ Cytoplasmic inclusion ・ Cytoplasmic incompatibility ・ Cytoplasmic male sterility ・ Cytoplasmic polyadenylation element ・ Cytoplasmic streaming ・ Cytoplasmic transfer ・ Cytoplast ・ Cytoprotection ・ Cytora ・ Cytora ampla ・ Cytora annectens ・ Cytora aranea ・ Cytora calva 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 Cytoplasmic determinant ： ウィキペディア英語版 Cytoplasmic determinant Cytoplasmic determinants are special molecules which play a very important role during oocyte maturation, in the female's ovary. During this period of time, some regions of the cytoplasm accumulate some of these cytoplasmic determinants, whose distribution is thus very heterogenic. They play a major role in the development of the embryo's organs. Each type of cell is determined by a particular determinant or group of determinants. Thus, all the organs of the future embryo are distributed and operating well thanks to the right position of the cytoplasmic determinants. The action of the determinants on the blastomeres is one of the most important ones. During the segmentation, cytoplasmic determinants are distributed among the blastomeres, at different times depending on the specie and on the type of determinant. Therefore, the daughter cells resulting from the first divisions are totipotent : they can, independently, lead to a complete individual. That is not possible after the cytoplasmic determinants have been distributed in the differentiated blastomeres. == Mosaic development == During the mosaic development, the future embryo contains all the distinct cytoplasmic determinants that are distributed in distinct cells. Regions of the organism differentiate very quickly if each cell contains specific cytoplasmic determinants since the first divisions : then the cell divides to give all the other cell of its type, and the same process happens in all types of cells in the organism. As a result, in the case of the mosaic development, cell totipotence disappears very quickly during segmentation. Indeed each new created cell determines a new region of the future organism, and it is independent from the other ones : thus development is independent from interaction between cells. It is most of all known in certain animals as nematodes C. elegans, or ascidians (marine animals). 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「Cytoplasmic determinant」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.