genetic marker

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Related to DNA marker: DNA ladder, Genetic markers

genetic

 [jĕ-net´ik]
1. pertaining to reproduction or to birth or origin.
2. inherited.
genetic code the arrangement of nucleotides in the polynucleotide chain of a chromosome; it governs the transmission of genetic information to proteins, i.e., determines the sequence of amino acids in the polypeptide chain making up each protein synthesized by the cell. Genetic information is coded in DNA by means of four bases: two purines (adenine and guanine) and two pyrimidines (thymine and cystosine). Each adjacent sequence of three bases (a codon) determines the insertion of a specific amino acid. In RNA, uracil replaces thymine.
genetic map
1. the location of mutations along the length of a chromosome, as determined by recombination experiments. The unit of length is the centimorgan (cM), one crossover per meiosis.
2. the sequence of base pairs along the DNA of a chromosome, a technique being applied to humans.
A gene map of Chromosome 18. From Copstead, 1996.
genetic marker a gene having alleles that are all expressed in the phenotype, that is, they are codominant, and which can be used to study inheritance. The various blood group systems and serum or red blood cell proteins easily detected by electrophoresis or immunodiffusion are commonly used markers.

ge·net·ic de·ter·mi·nant

any antigenic determinant or identifying characteristic, particularly those of allotypes.
Synonym(s): genetic marker

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

any specific gene that produces a readily recognizable genetic trait that can be used in family and population studies or in linkage analysis. Also called gene marker, marker gene.

ge·net·ic de·ter·mi·nant

(jĕ-net'ik dĕ-tĕr'mi-nănt)
Any antigenic determinant or identifying characteristic, particularly those of allotypes.

genetic marker

A gene or DNA sequence that indicates the presence of a disease or a probable risk of developing it.

genetic marker

  1. a phenotypic character that can be assigned to a GENE to mark its position on the GENOME.
  2. a characteristic feature of the GENOTYPE, such as a NUCLEOTIDE signature, gene or HETEROCHROMATIC region, that can be used to track a particular individual, TISSUE, CELL, NUCLEUS, CHROMOSOME, PLASMID or gene. Genetic markers are used, for example, to detect the presence of cloning VECTORS in GENETIC ENGINEERING and to monitor ORGANISMS released into the environment. See RESTRICTION FRAGMENT LENGTH POLYMORPHISM.

genetic marker,

n a specific gene that produces a readily recognizable genetic trait that can be used in family and population studies or in linkage analysis.
References in periodicals archive ?
To streamline the process, Agricultural Research Service geneticist Amnon Levi and plant pathologist Pat Wechter have developed a new method for identifying DNA markers.
DNA markers for identifying waxy mutations and improving noodle quality in wheat.
Maps, by establishing the location, order, and relative distance of genes, anonymous DNA markers, and biologically important traits along a species' chromosomes, are critical tools in analyzing genetic contribution to a given disease state.
These findings should motivate renewed interest in historical reconstructions of the Jewish priesthood as well as additional high resolution DNA marker analyses of other populations and 'lost tribes' claiming ancient Hebrew ancestry," Hammer said.
ABSTRACT Non-amplifying, PCR-null alleles are detected at 49 (51%) of 96 microsatellite DNA markers tested for Mendelian segregation in three families of the Pacific oyster Crassostrea gigas Thunberg.
A DNA marker associated with rotation resistance would help alert farmers to when the trait has, or has not, spread to their region.
Male fetuses were studied because they have unique DNA markers, sequences on the Y chromosome.
Studies investigating gene-environment interactions have identified DNA markers (e.
The results of this study show that a high proportion (84%) of phenotypic female chinook salmon from the Hanford Reach of the Columbia River tested positive for the male-specific DNA marker (Table 1).
We continue to be excited by the opportunities that await us this year and we believe we are uniquely positioned to grow, generating revenues from our SigNature[TM] DNA markers, DermalRx[TM] products and Fibertyping[TM].
When combined with optical reporters and rapid screening tools, cash can be rapidly screened for the likely presence of a SigNature[TM] DNA marker in less than a second," stated Dr.