genetic marker

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.

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

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.

Word History and Origins

Origin of genetic marker¹

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