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An identifiable DNA sequence that facilitates the study of inheritance of a trait or a gene. Such markers are used in mapping the order of genes along chromosomes and in following the inheritance of particular genes: genes closely linked to the marker will generally be inherited with it. Markers must be readily identifiable in the phenotype, for instance by controlling an easily observable feature (such as eye color) or by being readily detectable by molecular means, e.g., microsatellite markers.
Publication Source: Food and Agricultural Organization of the United Nations (FAO)
Publication Date: 1999
See also: RFLP
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