Glossary Term
Cryopreservation
Preservation of cells, tissues, organs, or embryos by storage at low temperatures.
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Glossary Term
Preservation of cells, tissues, organs, or embryos by storage at low temperatures.
Glossary Term
A PCR format that partitions each sample into thousands of sub-reactions and calls each partition positive or negative, giving absolute quantification without a standard curve. Useful for low-level targets, copy-number work, and reference material characterization; throughput and per-test cost differ from qPCR.
Glossary Term
The quantity and identity of all of the low molecular weight molecules in a biological entity or sample that are products of or participants in various metabolic processes.
Glossary Term
A WHO assessment that confirms a diagnostic meets quality, safety, and performance requirements for procurement by UN agencies and many national programs. WHO PQ status is frequently a tender eligibility criterion for public-health deployment in low- and middle-income countries.