b'The polymerase chain reaction (PCR) is a sensitive and efficient method for amplifying a single copy of a target DNA sequence to millions of copies. DNA amplification by PCR is an important step in cloning, gene expression analysis, genotyping, sequencing, and mutagenesis. PCR has a broad range of applications, including in research for infectious diseases, cancer, forensic analysis, and agricultural biotechnology.Find technical resources on PCR at thermofisher.com/pcreducation20'