Exit Ticket Articles,
Article 1, 2/2/11http://www.guardian.co.uk/science/2010/nov/28/scientists-reverse-ageing-mice-humans
Article 2, 2/4/11 http://www.nytimes.com/2010/12/03/business/energy-environment/03sugar.html?ref=geneticengineering
Article 3, 2/8/11 http://www.pbs.org/wgbh/nova/genome/debate.html
Video 4, 2/10/11 http://www.pbs.org/wgbh/nova/body/public-genomes.html
Other Articles
A follow up to the article on beets: http://www.nytimes.com/2011/02/05/business/05beet.html?scp=1&sq=beets&st=Search