genetic marker


any distinct inheritable indicator of identity and ancestry.
a chromosomal landmark or allele that allows for the tracing of a specific region of DNA, as in the study of recombination.

Nearby words

  1. genetic immunity,
  2. genetic lethal,
  3. genetic load,
  4. genetic male,
  5. genetic map,
  6. genetic psychology,
  7. genetic relationship,
  8. genetic screening,
  9. genetic testing,
  10. genetically modified

Origin of genetic marker

First recorded in 1945–50

Also called marker, marker gene. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for genetic marker

genetic marker


a gene with two or more alternative forms, producing readily identifiable variations in a particular character, used in studies of linkage, genetic mapping, and identification of the presence of other genes that are closely linked to, and therefore usually inherited with, it
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for genetic marker

genetic marker


A gene phenotypically associated with a particular, easily identified trait and used to identify an individual or cell carrying that gene.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for genetic marker

genetic marker

A gene or DNA sequence having a known location on a chromosome. Genetic markers associated with certain diseases can be used to determine whether an individual is at risk for developing an inherited disease.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.