genetic marker

American  

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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genetic marker British  

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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genetic marker Scientific  

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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Etymology

Origin of genetic marker

First recorded in 1945–50

Example Sentences

Those who test positive for a genetic marker linked to cancer or high cholesterol are offered a virtual appointment with a genetics counselor free of charge.

From Salon

Additionally, recent studies have spotlighted the relevance of genetic variants in the regulatory segment of the ATP8B1 gene as a strong genetic marker for Alzheimer's resilience.

From Science Daily

A new study finds that greenspace -- the vegetation in a neighborhood's yards, parks and public spaces -- has a positive impact on a key genetic marker associated with exposure to stress.

From Science Daily

The research gives a reliable genetic marker for plant breeders to know what strains they are dealing with.

From Salon

The team focused on a specific genetic marker for a group of cells involved in craniofacial development in both mammals and fish.

From Science Daily