polar body

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polar body

Either of two small cells formed by the ovum during its maturation, the first usually released just before ovulation and the second not until after the ovum has been discharged from the ovary and penetrated by a sperm cell.

polar body,

one of the small cells produced during the two meiotic divisions in the maturation of a female gamete, or ovum. Polar bodies are nonfunctional and incapable of being fertilized. See also oogenesis.

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amygdaloid body animal pole asteroid body Barr body basal body biopsy body body dysmorphic disorder body image cephalic pole ciliary body dysmorphophobia foreign body germinal pole gladiolus hematoxylin body lamellar body mamillary body multilamellar body			Eggs are arrested at metaphase 1 prior to insemination and meiosis resumes with the formation of the first polar body approximately 5-7 min PI (Fig. Effects of ultraviolet radiation on gametic function during ... by Seaver, Ryan W.; Ferguson, Gary W.; Gehrmann, William H.; Misamore, Michael J. / Journal of Shellfish Research Dr Fishel, a former pupil of King David School, Childwall, said: "We are delighted to announce the world's first pregnancy using real-time polar body array Comparative Genomic Hybridization (CGH) and the baby is due later in the spring. Breakthrough raises hopes for better IVF success rate; New screening ... by Daily Post (Liverpool, England) Although people can't naturally reproduce this way, a woman's egg also retains an extra set of chromosomes in a polar body until fertilization. Stem cells from virgin eggs: nonviable embryos could answer ethical ... by Barry, Patrick / Science News			poison gas Poison Ivy Poison Ivy and Poison Oak poison ivy dermatitis Poison Oak poison sumac poisoning poisoning treatment poisonous poisonous mushroom poisonous plant Poisson distribution Poitou ass poke Poke and Sniff Pokemon poker spine pokeroot pokeweed pol gene polacrilex Poland China Poland Syndrome Poland's syndrome polar polar body polar body biopsy polar cataract polar star Polaramine polarimeter polarimetry polarine polariscope polarity polarity agent effect polarity tea polarity therapy polarization polarization microscope polarized polarized light polarizer polarographic oxygen analyzer polarography Polarus pole Pole Dancing poleaxe polecat poles of kidney			Polar Ball polar bear polar bear Polar Bear Administrative Committee Polar Bear Association Polar bear club Polar bear habitat Polar bear habitat Polar Bear hunting Polar Bear hunting Polar bear liver Polar bear liver Polar bear liver Polar Bear Software Company Polar Bear Specialist Group Polar Bear Swim Day Polar bears Polar bears Polar Bears Cricket Club Polar Bears International Polar behaviour Polar behaviour Polar behaviour Polar bera Polar bera Polar bodies Polar bodies Polar bodies Polar bodies Polar bodies polar body polar body biopsy Polar bond Polar bond Polar bond Polar bonds Polar bonds Polar bonds polar cap polar cap Polar Cap Absorption Polar Cap Anomaly Polar Cap Disturbance Polar caps Polar caps polar cataract polar cataract polar cataract polar cataract polar chart polar circle polar circle Polar circles Polar climate Polar clock Polar co-ordinates Polar cod Polar Command and Data Acquisition Polar compound polar continental air Polar Continental Shelf Project

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