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A '''Genetic marker''' is a segment of [[DNA]] with an identifiable physical location on a [[chromosome]] and whose inheritance can be followed. A marker can be a gene, or it can be some 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 indirect ways of tracking the inheritance pattern of a gene that has not yet been identified, but whose approximate location is known.
A '''Genetic marker''' is a segment of [[DNA]] with an identifiable physical location on a [[chromosome]] and whose inheritance can be followed. A marker can be a gene, or it can be some 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 indirect ways of tracking the inheritance pattern of a gene that has not yet been identified, but whose approximate location is known.
== Sources ==
http://www.genome.gov/glossary.cfm?key=genetic%20marker
[[Category:Genetics]]
[[Category:Genetics]]