genetic marker

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Related to Gene markers: DNA 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 ?
After being told at the hospital that Caleb had a gene marker putting him at a slightly higher risk of contracting the disease, she enrolled the newborn, now 3, in a global study called TEDDY.
Scientists have already identified which gene markers indicate the attributes of the meat a bovine animal will yield.
We have developed specific gene markers that predict the probability of queen bees having the African version of stinging genes so it will be easier for breeders to avoid using them.
Dr Jin Huiqing has been trying to find gene markers for bad drivers in China for the past one year.
DNA testing company Complement Genomics is working on gene markers, using tissue samples from patients at James Cook University Hospital in Middlesbrough.
The success of a project to incorporate new gene markers into sheep breeding systems has been hailed as opening the way for UK producers to take advantage of the latest gene technology.
Researchers have already assembled a genetic map with more than 300 gene markers for M.
Candidates for the treatment would include people with certain protein or gene markers in their blood that predict increased risk of diabetes, says Al-Abed, but he cautions that it could be 10 years before ISO-1 reaches patients.
Rhodes counters the inbreeding situation by identifying specific gene markers on an animal's chromosomes and then looking for the gene markers in other animals of the species.
Now, with the help of state-of-the-art technology, scientists are trying to locate the gene markers which will indicate those in whom the cancer will spread rapidly and kill.
Genetic researchers at Cedars-Sinai Medical Center in Los Angeles are focusing on gene markers for inflammatory bowel disease (IBD).