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Marker
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 colour) or by being readily detectable by molecular means, e.g., microsatellite markers (q.v.). See gene tracking.
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- Part of Speech: noun
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- Industry/Domain: Biotechnology
- Category: Genetic engineering
- Organization: FAO
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