Polymerase Chain Reaction

Polymerase Chain Reaction (PCR) is a widely-used laboratory technique in the field of molecular biology that amplifies DNA sequences. PCR is based on the concept of the natural process of DNA synthesis, which involves the use of a special enzyme called DNA polymerase to build new DNA strands from existing templates. The PCR technique involves the use of a thermostable DNA polymerase called Taq (Thermus aquaticus) polymerase, which can withstand the high temperatures required to denature DNA. PCR is a powerful tool for detecting and analyzing DNA sequences and has revolutionized the field of molecular biology. It can be used to amplify DNA from a wide range of sources, including blood, tissue, and microbial samples, and is commonly used for medical diagnosis, forensic analysis, and genetic research. PCR can be used to identify mutations, detect the presence of pathogens, and study gene expression patterns. PCR has evolved over time, with new methods and modifications being introduced to improve its efficiency and accuracy. One such modification is real-time PCR, also known as qPCR (quantitative PCR), which allows for the quantification of DNA amplification in real-time. This enables the measurement of gene expression levels, identification of pathogens, and detection of mutations in a more efficient and accurate manner. In conclusion, the Polymerase Chain Reaction is a fundamental technique used in molecular biology for amplifying DNA sequences. The technique has been instrumental in the development of novel diagnostic and therapeutic approaches, and continues to play a critical role in the study of genetics, molecular biology, and biotechnology.

From: Journal of New Developments in Chemistry

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Polymerase Chain Reaction

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