| 释义 |
polar body
polar bodyn. Either of two small cells produced during the first and second meiotic divisions in the development of an oocyte, containing little cytoplasm and eventually degenerating.polar body n (Biology) physiol a tiny cell containing little cytoplasm that is produced with the ovum during oogenesis when the oocyte undergoes meiosis po′lar bod′y
n. one of the minute cells arising from the unequal meiotic divisions of the ovum at or near the time of fertilization. Thesaurus| Noun | 1. | polar body - a small cell containing little cytoplasm that is produced along with the oocyte and later discardedcell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals |
Polar Body
polar body[′pō·lər ‚bäd·ē] (cell and molecular biology) One of the small bodies cast off by the oocyte during maturation. Polar Body (also polocyte), in animals, a formation containing nuclear material and a small amount of cytoplasm. The polar bodies separate from the oocyte in the first and second meiotic divisions and subsequently degenerate. polar body
po·lar bod·yone of two small cells formed by the first and second meiotic division of oocytes; the first is usually released just before ovulation, the second not until discharge of the oocyte from the ovary; in mammals, the second polar body may fail to form unless the oocyte has been penetrated by a sperm. Synonym(s): polar cell, polar globule, polocytepolar bodyn. Either of two small cells produced during the first and second meiotic divisions in the development of an oocyte, containing little cytoplasm and eventually degenerating.po·lar bod·y (pō'lăr bod'ē) One of two small cells formed by the first and second meiotic division of oocytes; the first is usually released just before ovulation, the second not until discharge of the oocyte from the ovary. FinancialSeeBodypolar body
Related to polar body: polar body biopsyWords related to polar bodynoun a small cell containing little cytoplasm that is produced along with the oocyte and later discardedRelated Words |