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STR (short tandem repeat)

A genomic locus where a 2, 7 base-pair unit is repeated in tandem a variable number of times between individuals. The variation in repeat number produces alleles that differ in length by one repeat unit; alleles are resolved by capillary electrophoresis. The operational standard for forensic identification from 1994 to the present.

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Related terms

CODISAmelogeninAutosomal vs mitochondrial DNACapillary electrophoresisChromosomeESS (European Standard Set)HeterozygosityMultiplex STR kitNucleotidePCRRFLPSNP (Single Nucleotide Polymorphism)

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