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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Immature ovum ： ウィキペディア英語版 Immature ovum An immature ovum is a cell that goes through the process of oogenesis to become an ovum. It can be an oogonium, an oocyte, or an ootid. An oocyte, in turn, can be either primary or secondary, depending on how far it has come in its process of meiosis. ==Oogonium== (詳細はOogonia are the cells that turn into primary oocytes in oogenesis.〔(answers.com )〕 They are diploid, i.e. containing both pairs of homologous chromosomes. There are 23 chromosome pairs. Thus there are 46 chromosomes. Each chromosome, however, hasn't yet duplicated itself. Thus, there are only one chromatid on each chromosome, making the total quantity of chromatids 46. This is twice the number of chromosome pairs (2N). Oogonia are created in early embryonic life. All have turned into primary oocytes at late fetal age. 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「Immature ovum」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.