The polymerase chain reaction (PCR) is a technique used to replicate specific pieces of DNA millions of times, which permits the detection and analysis of minute amounts of nucleic acids. Since its introduction in the late 1980s, this technique has been applied not only in molecular biology research but also in fields as diverse as anthropology, phylogeny, and forensics. However, despite the large impact of PCR, many of its applications remain within the confines of research and the academic environment. Now, in A Low-Cost Approach to PCR: Appropriate Transfer of Biomolecular Techniques, Dr....