Genetic Marker

A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species. It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change (single nucleotide polymorphism, SNP), or a long one, like minisatellites.

Read more about Genetic MarkerBackground, Types, Uses, Insulin Production

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Genetic Marker - Insulin Production
... Genetic markers also play a role in genetic engineering, as they can be used to produce normal, functioning proteins to replace defective ones ... cells, a small number of which take up the genetic material and reproduce the new DNA sequence ...

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