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once again, not sure fair use applies here - but I'm not hiding it
A '''linkage study''' aims at establishing linkage between [[gene]]s. Linkage is the tendency for genes and other [[genetic marker]]s to be inherited together because of their location near one another on the same [[chromosome]].
A genetic marker is simply a segment of DNA with an identifiable physical location on a chromosome whose inheritance can be followed. A genetic marker can have a function and thus be a gene. Or a marker can be a section of DNA with no known function.
Because DNA segments that lie near each other on a chromosome tend to be inherited together, markers are often used as tools for tracking the inheritance pattern of a gene that has not yet been identified but whose approximate location is known.
Because DNA segments that lie near each other on a chromosome tend to be inherited together, markers are often used as tools for tracking the inheritance pattern of a gene that has not yet been identified but whose approximate location is known.
Today linkage studies serve as ways of gene-hunting and genetic testing.
Today linkage studies serve as ways of gene-hunting and genetic testing.
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The above was copied from http://www.medterms.com although the [[fair use]] rationale is a bit shaky.