Genetic Marker

Synonyms: marker

Definition: Genetic markers are landmarks on genetic maps The term marker is used very broadly to describe any observable variation that results from an alteration, or mutation, at a single genetic locus. Markers can be within genes that code for a noticeable physical characteristic such as eye color, or a not so noticeable trait such as a disease.

This definition is from the National Center for Biotechnology Information.

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Participate in canine health research by providing samples or by enrolling in a clinical trial. Samples are needed from healthy dogs and dogs affected by specific diseases.

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