| 释义 |
genetic marker
genetic markern. 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. Thesaurus| Noun | 1. | genetic marker - a specific gene that produces a recognizable trait and can be used in family or population studiescistron, 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" |
Translationsgenetic marker
genetic marker[jə¦ned·ik ′märk·ər] (genetics) A gene whose phenotypic expression is easily discerned and thereby can be used to identify an individual or a cell that carries it, or as a probe to mark a nucleus, chromosome, or locus. genetic marker
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·nantany antigenic determinant or identifying characteristic, particularly those of allotypes. Synonym(s): genetic markergenetic markern. 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.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 - a phenotypic character that can be assigned to a GENE to mark its position on the GENOME.
- 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.
FinancialSeeMarkergenetic marker
Words related to genetic markernoun a specific gene that produces a recognizable trait and can be used in family or population studiesRelated Words |