Glossary Term
Limit of Quantitation (LoQ)
The lowest concentration of an analyte that can be quantified with acceptable accuracy and precision under stated conditions — distinct from, and higher than, the limit of detection.
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Glossary Term
The lowest concentration of an analyte that can be quantified with acceptable accuracy and precision under stated conditions — distinct from, and higher than, the limit of detection.
Glossary Term
Any transmissible change in the genetic material of an organism, which can result from radiation, viral infection, transposition, treatment with mutagenic chemicals and errors during DNA replication or meiosis. The effects of mutation range from single base changes to loss or gain of complete chromosomes. As many of the simpler alterations to DNA may be repaired, such changes are only heritable once the change is fixed in the DNA by the process of replication. Mutations may be associated with genetic diversity or with pathologies including cancer.
Glossary Term
General term for a piece of DNA or RNA corresponding to a gene or sequence of interest, that has been labelled either radioactively or with some other detectable molecule, such as biotin, digoxygenin or fluorescein. As stretches of DNA or RNA with complementary sequences will hybridize, a probe will label viral plaques, bacterial colonies or bands on a gel that contain the gene of interest.
Glossary Term
A PCR method that measures amplification as it happens using fluorescent reporters, so target quantity is estimated from the amplification curve rather than by post-run handling. qPCR is the workhorse format for viral load, pathogen detection, and GMO or food testing workflows.