|
Definition of Genetic marker
1. Noun. A specific gene that produces a recognizable trait and can be used in family or population studies.
Medical Definition of Genetic marker
1. A gene which has an easily identifiable phenotype so that one can tell apart cells or individuals which have the gene and those which do not have it. Such a gene can also be used as a probe to mark cell nuclei or chromosomes so that they can easily be isolated or identified from other nuclei or chromosomes later. (09 Oct 1997)