John Rene Plaut
test pcr 29
TEST PCR It is a very simple molecular biologyological technique that is made to detect, among many other possibilities, the presence of viruses in the DNA of a living being. PCR stands for Polymerase Chain Polymerase Polymerase Polymerase Polymerase PolymerAse PolymerAse Polymer . A small segment of DNA is taken and by temperature and a thermostable enzyme (taq polymerase) is multiplied (by the denaturation and repeated priming of the sample) in a thermocycler between 20 and 40 times to obtain a volume ( 27 cycles produce more than one million copies of genes of interest in just 4 hours) sufficient that a software can easily detect the presence of the pathogen. However it has 70% accuracy as there are a lot of cases of false negatives. There are two types of test the conventional and the quick test qPCR, in which it is measured in real time.
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