National Human Genome Research Institute (NHGRI)
A genetic marker is a DNA sequence with a known physical location on a chromosome. Genetic markers can help link an inherited disease with the responsible gene. DNA segments close to each other on a chromosome tend to be inherited together.
Genetic marker - Wikipedia
A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species. It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that can be observed.
What are Genetic Markers? (with pictures) - wisegeek.com
Genetic markers are also used in paternity testing and the investigation of crimes. By looking for specific markers, known samples of DNA can be compared to unknown samples or samples in question to determine whether or not the samples are related or identical.
Genetic Markers | HowStuffWorks
A genetic marker is any alteration in your DNA that may indicate an increased risk of developing a specific disease or disorder. Because SNPs are, by their very definition, variations in DNA, they can be used as flags or markers for nearby DNA that affects your health.
genetic marker | Definition & Types | Britannica.com
Genetic marker, any alteration in a sequence of nucleic acids or other genetic trait that can be readily detected and used to identify individuals, populations, or species or to identify genes involved in inherited disease.
Genetic Marker | Definition of Genetic Marker by Merriam ...
Genetic marker definition is - a readily recognizable genetic trait, gene, DNA segment, or gene product used for identification especially when closely linked to a trait or genetic material that is difficult to identify.
Genetic marker - an overview | ScienceDirect Topics
Genetic marker. Genetic markers can be defined as specific DNA sequences with a known location on a chromosome and are essential tools for linkage and association studies.
Genetic marker | definition of genetic marker by Medical ...
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.
Introduction to Genetic Markers - National Geographic Society
Introduction to Genetic Markers How does genetic information help scientists reconstruct early ... genetic marker: Noun: gene that is located on a specific place on a chromosome. mutation: Noun: sudden variation in one or more characteristics caused by a change in a gene or chromosome.
Genetic Mapping Fact Sheet - National Human Genome ...
Genetic Mapping. What is genetic mapping? How do researchers create a genetic map? What are genetic markers? What is genetic mapping? Among the main goals of the Human Genome Project (HGP) was to develop new, better and cheaper tools to identify new genes and to understand their function.