Gene, marker
A detectable genetic trait or segment of DNA that can be identified and tracked. A marker gene can serve as a flag for another gene, sometimes called the target gene. A marker gene must be on the same chromosome as the target gene and near enough to it so that the two genes (the marker gene and the target gene) are genetically linked and are usually inherited together.

Medical dictionary. 2011.

Look at other dictionaries:

  • Marker assisted selection — or marker aided selection (MAS) is a process whereby a marker (morphological, biochemical or one based on DNA/RNA variation) is used for indirect selection of a genetic determinant or determinants of a trait of interest (i.e. productivity,… …   Wikipedia

  • Gene trapping — is a high throughput approach that is used to introduce insertional mutations across the mammalian genome. It is performed with gene trap vectors whose principal element is a gene trapping cassette consisting of a promoterless reporter gene… …   Wikipedia

  • Gene targeting — ist eine genetische Technik, die die Rekombination ausnutzt, um ein endogenes Gen zu verändern. Die Methode kann verwendet werden, um ein Gen auszulöschen, Exons zu entfernen und Punktmutationen durchzuführen. Gene targeting kann permanent sein… …   Deutsch Wikipedia

  • Marker — may refer to: Marker (linguistics), a morpheme that indicates some grammatical function Marker (telecommunications), a special purpose computer A set of sewing patterns tightly arranged within a rectangle that is placed over cloth to be cut… …   Wikipedia

  • marker gene — Gene that confers some readily detectable phenotype on cells carrying the gene, either in culture, or in transgenic or chimeric organisms. Gene could be an enzymic reporter gene, a selectable marker conferring antibiotic resistance, or a cell… …   Dictionary of molecular biology

  • Gene therapy — using an Adenovirus vector. A new gene is inserted into an adenovirull. If the treatment is successful, the new gene will make a functional protein. Gene therapy is the insertion, alteration, or removal of genes within an individual s cells and… …   Wikipedia

  • marker gene — marker gene. См. маркерный ген. (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.

  • marker — [MÁR CĂR] s. m. 1. genă mutantă cu efecte fenotipice detectabile, cu localizare cunoscută, care permite localizarea altor gene. 2. particularitate morfologică ce permite identificarea corectă a unui cromozom. ♢ cromozom diferit de omologul său… …   Dicționar Român

  • Marker gene — A marker gene is a gene used in molecular biology to determine if a nucleic acid sequence has been successfully inserted into an organism s DNA. There are two types of marker genes: a selectable marker and a marker for screening. Selectable… …   Wikipedia

  • Marker — A piece of DNA that lies on a chromosome so close to a gene that the marker and the gene are inherited together. A marker is thus an identifiable heritable spot on a chromosome. A marker can be an expressed region of DNA (a gene) or a segment of… …   Medical dictionary

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