segregation

1. Removal of certain parts from a mass, e.g., those with infectious diseases. 2. Separation of contrasting characters in the offspring of heterozygotes. 3. Separation of the paired state of genes, which occurs at the reduction division of meiosis; only one member of each somatic gene pair is normally included in each sperm or ovum; e.g., an individual heterozygous for a gene pair, Aa, will form gametes half containing gene A and half containing gene a. 4. Progressive restriction of potencies in the zygote to the following embryo. [L. segrego, pp. -atus, to set apart from the flock, separate]

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seg·re·ga·tion .seg-ri-'gā-shən n the separation of allelic genes that occurs typically during meiosis

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seg·re·ga·tion (seg″rə-gaґshən) [L. segregatio separation] 1. in genetics, the separation of allelic genes during meiosis as homologous chromosomes begin to migrate toward the poles of the cell, so that eventually the members of each pair of allelic genes go to separate gametes. 2. the progressive restriction of potencies in the zygote to the various regions of the forming embryo.

Medical dictionary. 2011.

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  • ségrégation — [ segregasjɔ̃ ] n. f. • 1550; segregacion 1374; lat. segregatio, de segregare « séparer du troupeau » 1 ♦ Didact. Action de mettre à part; le fait de séparer (en parlant d éléments d une masse ou d un groupe). 2 ♦ Cour. Ségrégation raciale :… …   Encyclopédie Universelle

  • Segregation — or segregate may refer to: *Geographical segregation *Mendel s law of segregation *Particle segregation *Racial segregation *Religious segregation *Residential Segregation *Security segregation *Segregated cycle facilities *Gender segregation… …   Wikipedia

  • segregation — seg·re·ga·tion /ˌse gri gā shən/ n 1: separation of individuals or groups and esp. racial groups compare desegregation de facto segregation: segregation of racial groups that arises as a result of economic, social, or other factors rather than by …   Law dictionary

  • Segregation — Ségrégation Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

  • Segregation — is the separation of an individual or group of individuals from a larger group, often in order to apply special treatment to the separated individual or group. Segregation can also involve the separation of items from a larger group, as seen with …   Investment dictionary

  • Segregation — Seg re*ga tion, n. [L. segregatio: cf. F. s[ e]gr[ e]gation.] 1. The act of segregating, or the state of being segregated; separation from others; a parting. [1913 Webster] 2. (Geol.) Separation from a mass, and gathering about centers or into… …   The Collaborative International Dictionary of English

  • segregation — segregation. См. расщепление. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Segregation — Segregation. См. ликвация. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • Segregation — Segregation, lat. deutsch, Absonderung; segregatorium, Absonderungswerkzeug für Flüssigkeiten …   Herders Conversations-Lexikon

  • segregation — (n.) 1550s, act of segregating, from L.L. segregationem (nom. segregatio), noun of action from segregare (see SEGREGATE (Cf. segregate)). Meaning state of being segregated is from 1660s. Specific U.S. sense of enforced separation of races is… …   Etymology dictionary

  • segregation — [n] separation apartheid, discrimination, dissociation, disunion, division, exlusion, isolation, partition, seclusion, splitting up; concepts 135,195,297,388 …   New thesaurus

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