Oocyte - Wikipedia
An oocyte (/ ˈoʊəsaɪt /, oöcyte, or ovocyte is a female gametocyte or germ cell involved in reproduction. In other words, it is an immature ovum, or egg cell. An oocyte is produced in a female fetus in the ovary during female gametogenesis. The female germ cells produce a primordial germ cell (PGC), which then undergoes mitosis, forming oogonia.
Oocyte Definition & Meaning - Merriam-Webster
The meaning of OOCYTE is an egg before maturation : a female gametocyte.
Oocyte Definition and Examples - Biology Online Dictionary
2022年7月24日 · The oocyte is an immature female sex cell. It starts off as an oogonium by the process of oocytogenesis, and matures to give rise to a fully mature ovum or egg cell and ootid (by ootidogenesis). The counterpart of oocyte in males is spermatocyte.
Oocyte Development - Embryology
3 天之前 · The oocyte (eggs, ova, ovum) is arrested at an early stage of the first { {meiosis)) (first meiotic) division as a primary oocyte (primordial follicle) within the ovary. Following puberty, during each menstrual cycle, pituitary gonadotrophin stimulates completion of meiosis 1 the day before ovulation.
Oocyte | definition of oocyte by Medical dictionary
Female gamete or sex cell.
Oocyte: Function, Oogenesis, Structure, Fertility and Abnormalities ...
It is produced in the ovary by an ancestral cell called oogonium and gives rise to the ovule, which can be fertilized. An oocyte is a female germ cell in the process of development. An egg is the egg before it is released at ovulation. An oocyte is the germ cell involved in …
Oocyte - an overview | ScienceDirect Topics
Oocyte mitochondria are unique in their structure and DNA content relative to somatic cells in that they are spherical, have few cristae, and contain only one to two copies of mitochondrial DNA each. Oocytes also contain far more mitochondria than somatic cells.
The maintenance of oocytes in the mammalian ovary involves …
2024年6月20日 · Here we report that oocyte and ovarian proteostasis involves extreme protein longevity. Mouse ovaries had more extremely long-lived proteins than other tissues, including brain. These long-lived...
Oocytes maintain ROS-free mitochondrial metabolism by ... - Nature
2022年7月20日 · Here we show that oocytes evade ROS by remodelling the mitochondrial electron transport chain through elimination of complex I. Combining live-cell imaging and proteomics in human and Xenopus...
Mechanisms of Oocyte Maturation and Related Epigenetic …
2021年3月18日 · Oocyte meiotic maturation is a complicated and vital process used to attain full competence required for the oocyte as well as early embryonic development. An oocyte arrested at meiotic prophase I contains a large nucleus covered by a nuclear envelope, which is known as the germinal vesicle (GV).