complementation

1. Functional interaction between two defective viruses permitting replication under conditions inhibitory to the single virus. 2. Interaction between two genetic units, one or both of which are defective, permitting the organism containing these units to function normally, whereas it could not do so if either unit were absent.
- intergenic c. c. between pieces of genetic material that regulate the same function, such as a multienzyme pathway, but have defects in regions of separate genetic function; such c. permits synthesis of a normal end-product.
- intragenic c. c. between pieces of genetic material, each of which has a different defect within the same locus; the resultant product of each is defective and nonfunctional, but the defective products may associate to produce a product which has some activity.

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com·ple·men·ta·tion .käm-plə-(.)men-'tā-shən, -mən- n
1) the formation of neutral colors from complementary colors
2) production of normal phenotype in an individual heterozygous for two closely related mutations with one on each homologous chromosome and at a slightly different position

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com·ple·men·ta·tion (kom″plə-men-taґshən) [L. complēre to fill out or up] the interaction between two sets of genes introduced into the same cell, such that the cell can function even though each set of genes carries a mutated, nonfunctional gene; it indicates that the defects are not identical.

Medical dictionary. 2011.

Look at other dictionaries:

  • Complementation — Complémentation La complémentation est en génétique le fait qu un gène introduit dans un organisme puisse compenser le défaut provoqué par l inactivation d un géne de cet organisme. Test de complémentation Un test de complémentation (parfois en… …   Wikipédia en Français

  • complémentation — [ kɔ̃plemɑ̃tasjɔ̃ ] n. f. • 1914; de complément 1 ♦ Didact. Fait de fournir un complément à (qqch.). Inform. Opérateur de complémentation. ⇒ complément (4o). 2 ♦ Cour. Fait de compléter, d achever. ● complémentation nom féminin Opération qui… …   Encyclopédie Universelle

  • complementation — n. (Linguistics) the grammatical relation of a word or phrase to a predicate. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • complementation — complementation. См. комплементация. (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.

  • Complémentation — La complémentation est en génétique le fait qu un gène introduit dans un organisme puisse compenser le défaut provoqué par l inactivation d un gène de cet organisme. Test de complémentation Un test de complémentation (parfois en anglais cis trans …   Wikipédia en Français

  • complementation — [[t]kɒ̱mplɪmente͟ɪʃ(ə)n[/t]] N UNCOUNT: usu N n In linguistics, a complementation pattern of a verb, noun, or adjective is the patterns that typically follow it. [TECHNICAL] …   English dictionary

  • complementation — See: genetic complementation …   Glossary of Biotechnology

  • complementation — noun Date: 1942 1. the operation of determining the complement of a mathematical set 2. production of normal phenotype in an individual heterozygous for two closely related mutations with one on each homologous chromosome and at a …   New Collegiate Dictionary

  • complementation — n. [L. complementum, something that completes] The appearance of wild type phenotype in an organism or cell containing two different mutations combined in a hybrid diploid …   Dictionary of invertebrate zoology

  • complementation — The ability of a mutant chromosome to restore normal function to a cell that has a mutation in the homologous chromosome when a hybrid or heterokaryon is formed the explanation being that the mutations are in different cistrons and between the… …   Dictionary of molecular biology

  • complementation — /kom pleuh meuhn tay sheuhn/, n. 1. See complementary distribution. 2. Genetics. the occurrence of a wild type phenotype when two closely related, interacting mutant genes are expressed in the same cell. 3. Gram. a. complement (def. 6). b. the… …   Universalium

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