Polymerase Chain Reaction (PCR) is a molecular biology technique used for amplifying specific DNA sequences. It is a crucial tool in applications such as genetic research, medical diagnostics, forensic science, and many more. While Polymerase Chain Reaction is the most commonly used term to describe this technique, there are a few synonyms that could be used interchangeably. Some may refer to it as DNA amplification, DNA replication, or DNA sequencing. Others may use related acronyms such as qPCR (quantitative Polymerase Chain Reaction) or RT-PCR (Reverse Transcription Polymerase Chain Reaction). Despite the different names, PCR remains an essential method for DNA analysis and research.