We’re not rejecting you, just your oligo
PCR is arguably one of the most enabling technologies of modern molecular biology, with a sensitivity that can detect incredibly small amounts of DNA. However, the sensitivity of the method is also one of the biggest challenges—when you can detect just a few molecules of DNA, inadvertent contamination can give you misleading data. Issues with contamination are especially critical in qPCR reactions for molecular diagnostics testing, such as for SARS-CoV-2 detection, where any contaminating template DNA, even if it’s just long fragments, can generate false positive results.
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