ASIS Professional Certified Investigator Practice Exam 2025 – Complete Study Guide

The primary function of PCR (Polymerase Chain Reaction) techniques is to replicate genetic material. PCR is a revolutionary method that allows for the amplification of specific DNA sequences, making it possible to produce millions of copies of a targeted fragment of DNA from a small initial sample. This replication process is crucial in various applications, including forensic analysis, medical diagnostics, and genetic research.

When using PCR, the target DNA is subjected to cycles of denaturation, annealing, and extension, which lead to the exponential amplification of the specific DNA segment. This focus on replicating genetic material allows for detailed genetic analysis and can be pivotal in identifying DNA evidence in criminal investigations, studying genetic disorders, or conducting paternity testing. Therefore, the essence of PCR techniques lies in their ability to replicate DNA, making option C the correct choice.