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AAT Bioquest

What is a genetic marker?

Posted April 12, 2024


Answer

A genetic marker is a specific DNA sequence whose precise location on a chromosome is known. It refers to any change or variation in a sequence of nucleic acids or other genetic characteristic that is easily identifiable and can be utilized to distinguish individuals, species or populations, or to pinpoint genes associated with inherited diseases. 

Additional resources

Genetic Marker

DNA & RNA Markers and Ladders

Gelite™ 100 bp DNA Ladder

DNA Concentration Calculator