Dictionary > Marker

Marker

Definition
noun, plural: markers
(general) Anything that marks or is used to mark, e.g. a location.
(genetics) A gene or DNA sequence with known physical location, and whose pattern of inheritance can be followed.
Supplement
In genetics, markers act as chromosomal landmarks. They are used to trace or identify specific region of a gene (especially one that is associated with an inherited disease) on a chromosome. They are also used to determine a linkage group or a recombination event.
Also called: (genetics) genetic marker, marker gene, DNA marker.

See also: genetic map.

Last updated on July 23rd, 2021

You will also like...

DNA carries genes coding for proteins
Genetic Information and Protein Synthesis

Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

Plant biology
Plant Biology

Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

Carbohydrates, fats and proteins - dietary sources
A Balanced Diet – Carbohydrates and Fat

Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..

human brain structure
The Conscious & Unconscious Nervous System

This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

Geological Periods
Geological Periods

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..