Genetic map
Genetic map
A Genetic map (pronunciation: /dʒɪˈnɛtɪk mæp/) is a type of chromosome map that shows the relative locations of genes and other important features on a set of chromosomes.
Etymology
The term "genetic map" is derived from the words "genetic", which comes from the Greek word "genetikos" meaning "genitive" and "map", which originates from the Latin word "mappa" meaning "cloth or sheet".
Description
A genetic map is used by researchers in the field of genetics and genomics to navigate through the genome of an organism. It provides a reference point that allows scientists to locate specific genes and to determine the distance between genes. The units of measurement on a genetic map are centimorgans (cM), which represent the frequency of recombination between genes.
Related terms
- Linkage map: A type of genetic map that shows the relative positions of genes on a chromosome based on the concept of genetic linkage.
- Physical map: A map of the physical locations of features on a chromosome, such as genes and markers, measured in base pairs.
- Genome mapping: The process of determining the relative positions of genes on a chromosome and the distance between them.
See also
External links
- Medical encyclopedia article on Genetic map
- Wikipedia's article - Genetic map
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