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Molecular Marker

Definition:

Specific fragments of DNA that can be identified within the whole genome.

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Molecular markers are found at specific locations of the genome. They are used to 'flag' the position of a particular gene or the inheritance of a particular characteristic.

In a genetic cross, the characteristics of interest will usually stay linked with the molecular markers. Thus, individuals can be selected in which the molecular marker is present, since the marker indicates the presence of the desired characteristic.

Source: GreenFacts, based on the GreenFacts Digest on Genetically Modified Crops

Related words:

Molecule

To read about this term in context:

GreenFacts Summary on Genetically Modified Crops:

Translation(s):

Español: Marcadores moleculares
Français: Marqueurs moléculaires

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