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The real-time fluorescence-based quantitative polymerase chain reaction (qPCR) has. become the benchmark technology for the detection of nucleic acids in every area of. microbiology, biomedical research, biotechnology and in forensic applications. Unlike. conventional (legacy) PCR, which is a qualitative end-point assay, qPCR allows accurate.
The polymerase chain reaction (PCR) is a technology in molecular biology used to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence. At this step the DNA polymerase synthesizes a new DNA strand complementary to the DNA template strand by adding dNTPs that are complementary to the template in 5' to 3' direction, condensing the 5'- phosphate group of the dNTPs with the 3'- hydroxyl group at the end of the nascent (extending) DNA strand.