tandem repeat sequence

https://doi.org/10.1351/goldbook.09730

Multiple consecutive copies of the same nucleotide sequence on a chromosome.

Note: Tandem repeat sequences can be used as markers in physical mapping e.g. by DNA profiling.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1153 (https://doi.org/10.1515/pac-2016-1120)