Which one of the following methods is used purify a sample of urine?
Answers
Centrifugation is used in diagnostic laboratories for blood and urine test.
In centrifugation, the mixture is spun at high speed and the denser particles are forced to the bottom and lighter stay at the top.
This method is used in diagnostic laboratories for blood and urine tests.
Explanation:
Urine holds great promise as a non-invasive sampling method for molecular diagnostics. The cell-free nucleic acids of urine however are small, labile, and difficult to purify. Here an efficient method for the purification of these nucleic acids is presented. An empirically derived protocol was devised by first identifying conditions that allowed recovery of a 100 base pair (bp) DNA, followed by optimization using a quantitative polymerase chain reaction (qPCR) assay.
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