oocyte
Sign in to saveAn oocyte (, oöcyte, or ovocyte) is a female germ cell involved in sexual reproduction. An oocyte is an immature ovum, an immature egg cell produced in a female fetus in the ovary during gametogenesis. During oogenesis, the oogonia become primary oocytes. An oocyte is a form of genetic material that can be collected for cryopreservation.
Key facts
- Embryology.Name
- Oocyte
- Embryology.Caption
- "Stripped" human oocyte; granulosa cells that had surrounded this oocyte have been removed.
via Wikipedia infobox
Article
19 sectionsContents
- Formation
- Characteristics
- Cytoplasm
- Nucleus
- Nest
- Cumulus-oocyte complex
- Maternal contributions
- Avoidance of damage to germ-line DNA
- mRNAs and proteins
- Mitochondria
- Nucleolus
- Ribosomes
- Prophase I arrest
- Paternal contributions
- Abnormalities
- See also
- References
- Sources
- External links
An oocyte (, oöcyte, or ovocyte) is a female germ cell involved in sexual reproduction. An oocyte is an immature ovum, an immature egg cell produced in a female fetus in the ovary during gametogenesis. During oogenesis, the oogonia become primary oocytes. An oocyte is a form of genetic material that can be collected for cryopreservation.
==Formation== thumb|260px|Diagram showing the reduction in number of the chromosomes in the process of maturation of the [[ovum; the process is known as meiosis.]]