出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/04/06 19:33 UTC 版)
The dictyate or dictyotene is a prolonged resting phase in oogenesis. It occurs in the stage of meiotic prophase I in ootidogenesis. It starts late in fetal life and is terminated shortly before ovulation by the LH surge. Thus, although the majority of oocytes are produced in female fetuses before birth, these pre-eggs remain arrested in the Dictyate stage until puberty commences and the cells complete ootidogenesis.