genetic marker

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Related to DNA marker: DNA ladder, Genetic markers

genetic marker

n.
A gene, DNA sequence, or gene product whose inheritance can be traced through a pedigree or phylogeny. Genetic markers are used in paternity testing, studies of evolution, and evaluating genetic contributions to phenotypes including disease. Genetic markers associated with certain diseases can often be detected in the blood serum, where their presence is used to determine whether a person is at high risk for developing a disease.

genetic marker

n
(Genetics) a gene with two or more alternative forms, producing readily identifiable variations in a particular character, used in studies of linkage, genetic mapping, and identification of the presence of other genes that are closely linked to, and therefore usually inherited with, it

genet′ic mark′er


n.
any gene or allele that is associated with a specific chromosome and can be used to identify the chromosome or to locate other genes or alleles. Also called marker , marker gene.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.genetic marker - a specific gene that produces a recognizable trait and can be used in family or population studies
cistron, gene, factor - (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity; "genes were formerly called factors"
Translations
marqueur génétique
References in periodicals archive ?
The DNA fragments were determined visually on Agarose gel, by comparison of their staining intensities with those of known quantities of DNA marker of a similar size.
The first chapter, presented by the editor, outlines the history of DNA marker technology.
They said i was Indian because my DNA marker of M52 - was an unmistakably Indian marker.
For example, if we have an excellent date palm, we will find out the pattern of its DNA marker and also fingerprint it.
DNA marker applied to city manhole covers Well done Amey and the council, just tell the thieves to wear industrial chemical proof gloves.
Disc Graphics approach to making use of the DNA marker is simple.
In general, geneticists use random primers in their search for DNA markers, but that process is often long and arbitrary, and it can result in researchers spending a lot of time and money to identify just one DNA marker.
Segregating markers were judged for deviations from the expected 1:1 (of AFLP marker and microsatellite DNA marker polymorphic in one parent) or 1:1:1:1 and 1:2:1 (of microsatellite DNA marker polymorphic in both parents) phenotypic ratios with chi-square testing.
For a DNA marker to be considered as one to identify a species and to distinguish it from other species, it must be exclusive for the species as well as being monomorphic.
9 pmol) of a sequence-specific DNA marker or 20 [micro]g of a random masking DNA inserted to thwart copying of the molecular marker by sequencing or cloning.