PCR is a powerful tool that replicates specific DNA fragments, making it possible to detect minute genetic material. Widely used in clinical diagnostics, PCR plays a critical role in identifying pathogens, genetic mutations, and hereditary conditions. https://medium.com/@xelleratherapeutics/polymerase-chain-reaction-pcr-the-tiny-test-that-transformed-modern-science-8e858f9b9be6