http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. New work at the Salk Institute for Biological Studies reveals how a genetic switch, known as FoxJ1, helps developing embryos tell their left from their right. While at first glance the right and left sides of our bodies are identical to each other, this symmetry is only skin-deep. Below the surface, some of our internal organs are shifted sideways -heart and stomach to the left, liver and appendix to the right. http://www.physorg.com/news146062107.html Medicine & Health Sun, 16 Nov 2008 12:48:27 EST news146062107