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Quant Duo® Quantification Kit

Technology PhotoThrough Quant Duo® kit we are able to determine with a high degree of accuracy, whether DNA is present in a sample, at what quantity and whether it is from a male or female.


The method of Polymerase Chain Reaction (PCR) allows the analyst to copy (amplify) very specific sections of the chromosome resulting in over a million fold increase in the amount of that specific region of interest. The PowerPLex Fusion PCR amplification kit allows the simultaneous amplification of 22 autosomal STR loci, one Y-STR locus as well the gender determining marker Amelogenin. The 22 autosomal markers in the PowerPlex Fusion system include the 13 core FBI National Database loci.

AmpFâ„“STR® Yfiler® PCR Amplification Kit

Y-STRs can be used to examine sexual assault evidence. In a sexual assault case, evidence such as vaginal swabs will contain both female and male DNA. Differential extraction is often used to separate the male component from the female component.

Y-STR is also used for non-sexual assault cases where mixed samples are collected from evidence. Sometimes, regular STR will cause the masking effect if there is a very small quantity of male DNA in the mixed sample. Performing Y-STR testing can help to identify all males who have contributed to the evidence.