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genetic marker

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noun
  1. any distinct inheritable indicator of identity and ancestry.
  2. HLA antigen.
  3. a chromosomal landmark or allele that allows for the tracing of a specific region of DNA, as in the study of recombination.
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Origin of genetic marker

First recorded in 1945–50
Also called marker, marker gene.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for genetic marker

genetic marker

noun
  1. 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
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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

genetic marker in Medicine

genetic marker

n.
  1. A gene phenotypically associated with a particular, easily identified trait and used to identify an individual or cell carrying that gene.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

genetic marker in Science

genetic marker

  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.