cis-trans test

cis-trans test
in microbial genetics, a test to determine whether two (recessive) mutations are alleles (located in the same gene) or pseudoalleles (located in different genes). A heterozygote carrying the mutations on the same chromosome (cis configuration) will show a wild-type phenotype in either case, but one carrying the mutations on different chromosomes (trans configuration) will show a wild-type phenotype if they are pseudoalleles and a mutant phenotype if they are alleles.

Medical dictionary. 2011.

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  • cis-trans-Test —   [lateinisch], Komplementationstest, Genetik: Test zur Feststellung, ob zwei Mutationen zwei verschiedener Allelen eines Gens oder zwei Genen zuzuordnen sind. Ein Genomabschnitt, der sich im cis trans Test als Funktionseinheit erweist, wird als… …   Universal-Lexikon

  • cis-trans-test — cis trans test. См. функциональный тест на аллелизм. (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.

  • cis-trans test — The complementation test with two or more interacting genes placed in cis and in trans relationships to each other. A double mutant genome is used in the cis test made from the two single mutant genomes used in the trans test by recombination. If …   Dictionary of molecular biology

  • cis-trans — [ sistrɑ̃s ] adj. • 1957; isomère cis trans 1933; de cis et trans ♦ Biol. Test cis trans : test permettant de connaître l effet de la configuration relative sur l expression de deux mutations chez un double hétérozygote. Isomérie cis trans. ● cis …   Encyclopédie Universelle

  • trans — transfer; transference; transverse * * * trans tran(t)s, tranz adj 1) characterized by or having certain groups of atoms on opposite sides of the longitudinal axis of a double bond or of the plane of a ring in a molecule see all trans 2) rela …   Medical dictionary

  • CIS — Abbreviation for carcinoma in situ. * * * capacity information system; carcinoma in situ; catheter induced spasm; central inhibitory state; Chemical Information Service; clinical information system; computer integrated surgery; computerized… …   Medical dictionary

  • cis- — ⇒CIS , élément préf. Élément préf. signifiant « en deçà de », formateur de composés subst. ou adj., princ. en géogr., en anat., chim. et phys. Anton. trans . A. GÉOGR. (v. aussi cisalpin, cismontain, cisrhénan empruntés au latin) : cisgangétique …   Encyclopédie Universelle

  • test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …   Medical dictionary

  • Cis AB — is a rare ABO Blood group antigen genotype which is phenotypically almost the same as AB. In Cis AB inheritance A and B antigen seem to be segregating as if they are in very close loci on the same chromosome. These can happen due to mutant… …   Wikipedia

  • Trans fat — Types of fats in food Unsaturated fat Monounsaturated fat Polyunsaturated fat Trans fat Cis fat Omega fatty acids: ω−3 ω−6 ω−9 Saturated fat Interesterified fat See also Fatty acid …   Wikipedia

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