Date of Award

Summer 8-2009

Degree Type

Restricted Internship Practicum Report

Degree Name

Master of Science

Field of Study

Forensic Genetics


Graduate School of Biomedical Sciences

First Advisor

Dr. Arthur Eisenberg


The project conducted at the Forensic Testing Laboratories (FTL) in Las Cruces, NM involved an internal validation of the AmpFlSTR® Yfiler™ PCR Amplification kit. FTL currently implements the PowerPlex® Y kit which amplifies eleven Y-STR markers. The Yfiler™ kit provides more discriminatory power as it contains sixteen Y-STR markers. The validation included sensitivity, mixture, case type samples, contamination, precision and injection time change studies as required by the National Standards. Based on the data obtained, the Yfiler™ kit successfully detects male DNA in the presence of female DNA, and the correct number of male contributors in male/male mixtures is distinguishable. The additional loci included in the Yfiler™ kit can provide more insight than what is achieved through the PowerPlex® Y kit.