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

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 This, combined with the muscular issues, told our doctors that there was a very serious condition here, potentially so rare there’s not a genetic marker identified for it yet. The Cut, The Cut, "The Mom Who Had an Abortion at 8 Months, Then a Surprise Pregnancy," 6 June 2018 Precision medicine, and the use of genetic markers to predict the success of treatments, promises to help answer these questions. Casey Ross, STAT, "A new cancer care dilemma: Patients want immunotherapy even when evidence is lacking," 4 June 2018 In late 2016, Versluis sought treatment at Mount Sinai Comprehensive Cancer Center in Miami Beach, where doctors discovered his tumors had a genetic marker that could respond to immunotherapy, one of the newer ways to treat cancer. Cindy Goodman, miamiherald, "Immunotherapy is giving some cancer patients a new life when they had all but given up | Miami Herald," 25 May 2018 Neither Kailen, her 11-year-old brother, nor Keanna, her eight-year-old sister, inherited the right mix of genetic markers to donate to their sister. Paul Sisson,, "Can you help six-year-old Kalea Ramos beat leukemia?," 29 May 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

19 Oct 2018

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The first known use of genetic marker was in 1932

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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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to reject or criticize sharply

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