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Molecular marker
From Wikipedia, the free encyclopedia
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- For other meanings, see the disambiguation page Marker
Molecular marker may mean any of the following:
- any kind of molecule indicating the existence of a chemical or physical process. In particular, in the fields of geology and astrobiology, biomarkers (also known as biosignatures) are sometimes understood as molecules indicating the presence (past or present) of living organisms.
- it can be a molecule used as fiscal marker to distinguish lower-taxed items from higher-taxed ones when they otherwise can be substituted (see fuel dyes)
- In medicine, a molecular marker can be a substance that is introduced in an organism as a means to examine something. For example, rubidium chloride is used as a radioactive isotope to evaluate perfusion of heart muscle.
- In biology and medicine, a molecular marker (biomarker) can be a substance native to the organism whose detection indicates a particular disease state (for example, the presence of an antibody may indicate an infection).
- In genetics, a molecular marker (identified as genetic marker) is a fragment of DNA sequence that is associated to a part of the genome.
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This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article. Note: This page may need to be cleaned up to meet Wikipedia's quality standards. See WikiProject Disambiguation for more information. |