A nuclear stress test uses radioactive dye and an imaging machine to create pictures showing the blood flow to your heart. The test measures blood flow while you are at rest and are exerting yourself, showing areas with poor blood flow or damage in your heart.
DNA (Little Mix song) DNA is a song recorded by British girl group Little Mix for their 2012 debut album of the same name. Released as the album's second single, the song was solicited to contemporary radio stations in the United Kingdom on 1 October 2012. Syco digitally released the single in Ireland and the United Kingdom on 9 November 2012.
DNA isolation is a process of purification of DNA from sample using a combination of physical and chemical methods. The first isolation of DNA was done in 1869 by Friedrich Miescher. Currently it is a routine procedure in molecular biology or forensic analyses. DNA purification from detergents, proteins, salts and reagents used during cell lysis step. 2  The most commonly used procedures are: 3  Ethanol precipitation usually by ice-cold ethanol or isopropanol. 4  Since DNA is insoluble in these alcohols, it will aggregate together, giving a pellet upon centrifugation.