Preprocessing and Differential Extraction
Reagents to help you pretreat swabs and storage card punches prior to direct amplification, preprocess challenging casework samples and easily separate sperm and epithelial cells.
DNA extraction systems that allow you to yield pure, intact DNA and save time with automation.
STR amplification systems for your forensic, paternity and relationship-testing applications. We offer systems to amplify the expanded CODIS, ENFSI-recommended, Penta D and Penta E loci.
The vast majority of the human genome is identical among diverse individuals. However, there are small regions of variation, especially in areas with repetitive sequences. One example is short tandem repeats (STRs) that can vary in length among individuals, with each repeat consisting of three to five nucleotides of DNA. Analysis of these repeats reveals a characteristic pattern for each individual that is inherited from paternal and maternal DNA. Forensic DNA databases use these patterns of STRs for human identification, and each national database has requirements for specific STR loci that are included.