genetic marker


Definition of genetic marker

: a readily recognizable genetic trait, gene, DNA segment, or gene product used for identification especially when closely linked to a trait or genetic material that is difficult to identify

Examples of genetic marker in a Sentence

Recent Examples on the Web

Law enforcement also tested 20 or so genetic markers from autosomes—nonsex chromosomes, which are inherited from both parents. Allysia Finley, WSJ, "The Making of a DNA Detective," 15 Feb. 2019 Genetic-test evidence is circular: if everyone who claims to be X has a particular genetic marker, then everyone with the marker is likely to be X. WSJ, "Notable & Quotable: Warren Takes a DNA Test," 17 Oct. 2018 With one cheek swab, Embark can test canine DNA for over 200,000 genetic markers to provide you with insights on breed, health, traits, and more. Alessandra Codinha, Vogue, "The 11 Best Gifts for the Devoted Dog Owner (and the Object of Their Affection)," 12 Nov. 2018 This reference genome has identified genetic markers, much like diagnostic markers, that can be linked to particular traits. Diana Gitig, Ars Technica, "The nightmarishly complex wheat genome finally yields to scientists," 16 Aug. 2018 One big one: There is no way, based on the genetic markers left at crimes scenes, to know the age of the suspect, said Homrock. Dan Morse, Washington Post, "A research biologist was raped and killed 24 years ago. Police say attacker may have looked like this.," 9 July 2018 Celmatix will mine this dataset for connections that could improve the test’s evaluations of genetic risk, as well as new genetic markers of reproductive health. Megan Molteni, WIRED, "This Company Wants Your Fertility Data," 13 July 2018 Labs analyze hundreds of thousands of genetic markers in an individual’s DNA, compare them with others and link up families based on similarities. Julian Hattem,, "Investigators say DNA database can be goldmine for old cases," 16 June 2018 Although the survival rate among children with leukemia is between 80 percent to 90 percent, Quentin was among a patient population with genetic markers that lowered the survival rate to between 20 to 30 percent. Maria Clark,, "New Orleans teen survives cancer thanks to sister's stem cells, shares his story at the Vatican," 6 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'genetic marker.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of genetic marker

1932, in the meaning defined above

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Last Updated

20 Apr 2019

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The first known use of genetic marker was in 1932

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More Definitions for genetic marker

genetic marker


Medical Definition of genetic marker

: a readily recognizable genetic trait, gene, DNA segment, or gene product used for identification purposes especially when closely linked to a trait or to genetic material that is difficult to identify

called also marker

Comments on genetic marker

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a strong desire or propensity

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