Forensic DNA: Alternative Genetic Markers
While short tandem repeat (STR) typing forms the backbone of current national DNA databases and day-to-day forensic casework, additional DNA marker systems are under exploration in the research arena. These new DNA marker systems include single nucleotide polymorphisms (SNPs), Alu-insertion elements, and phenotypic predictors. Alternative genetic markers and assays can potentially provide further information about biological samples under investigation, such as an estimation of ethnic origin, physical characteristics, and skin, hair, or eye color.
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