Definition of tandem repeat
: any of several identical DNA segments lying one after the other in a sequence
First Known Use of tandem repeat
Medical Definition of tandem repeat
: any of several identical DNA segments lying one after the other in a sequence <Although certain of these repetitive sequences are scattered throughout the DNA, others are reiterated many times in a row, so that they resemble the DNA equivalent of a stutter. These tandem repeats are usually found in critical regions, notably in the centromere …—Robert K. Moyzis, Scientific American, August 1991> <The DNA fingerprint technique is based on the existence of regions of DNA that are made up of tandem repeats …—Roger Levin, Science, 1 Aug. 1986>—compare long terminal repeat
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