Splash Biography

You might be wondering how police identify suspects when they find their body fluids at crime scene. This presentation introduces students to basic biology of Short tandem repeats (STRs) and Single nucleotide polymorphism (SNPs)) used in human identification. Students are familiarized to methods used in the forensic lab: body fluids collection, and identification, extraction and quantification of DNA, Polymerase Chain Reaction (PCR), Capillary electrophoresis - Genetic Analyzer, and assessment of DNA type. The presentation also describes students to evaluate DNA typing results of two samples for the comparison. Finally students are introduced to associate the DNA typing results to match the suspect with evidence and determines the true biological father of a child.