It's always a good idea to have positive and negative controls. In both types of control, you know what the correct results of the experiment should be. If you don't get the correct answers, then you know something went wrong with your experiment.<br />. <br />.
Leigh Nash. Leigh Bingham Nash (/liË nÃ¦Ê/; born June 27, 1976) is an American singer and songwriter who is the lead vocalist for the pop band Sixpence None the Richer and is also a member of Fauxliage and Movement Nashville. Her debut solo album, Blue on Blue, was released on August 15, 2006 by One Son/ Nettwerk record labels.
Careless Whisper. Never Gonna Dance Again redirects here. For the song by the Sugababes, see Change (Sugababes album). Careless Whisper is a song by English singer-songwriter George Michael (sometimes credited to Wham! featuring George Michael in Japan, Canada and the United States).