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Hace 1 día · A nucleic acid test ( NAT) is a technique used to detect a particular nucleic acid sequence and thus usually to detect and identify a particular species or subspecies of organism, often a virus or bacterium that acts as a pathogen in blood, tissue, urine, etc. NATs differ from other tests in that they detect genetic materials ( RNA or DNA ...
Hace 1 hora · When first studied in the early 1900s, the chemical and biological differences between RNA and DNA were not apparent, and they were named after the materials from which they were isolated; RNA was initially known as "yeast nucleic acid" and DNA was "thymus nucleic acid".Using diagnostic chemical tests, carbohydrate chemists showed that the two nucleic acids contained different sugars ...
