STRlokusille

STRlokusille is a term used in genetics to refer to a specific location on a chromosome where short tandem repeats are found. Short tandem repeats, often abbreviated as STRs, are short sequences of DNA that are repeated multiple times in a row. The number of repeats at a particular STR locus can vary significantly between individuals, making these loci highly polymorphic. This variability is the basis for their widespread use in DNA profiling and forensic science.

Each individual inherits two alleles for each STR locus, one from each parent. The number of repeat units at each allele can differ, leading to genotypes such as homozygous (having the same number of repeats at both alleles) or heterozygous (having a different number of repeats). Analysis of multiple STR loci allows for the creation of a unique DNA profile for an individual. In forensic investigations, STR analysis is crucial for identifying suspects from crime scene samples or for establishing familial relationships. Genetic databases often store STR profiles for identification purposes.