BBC Horizon: Full length documentary 'Ghost in your genes' PBS Nova: Preview of updated documentary 'Ghost in your genes' This original documentary was broadcast in 2005 on the BBC. PBS NOVA has aired an updated version on October 16, 2007. Scientists have long puzzled over the different fates of identical twins: both have the same ...

DNA is a programming language for living cells. The cell's basic operating system, or genome, directs functions like growth and reproduction, energy utilization, and the production of useful compounds like ethanol or penicillin. With genetic engineering, new functions can be added to cells or broken metabolic pathways repaired. Until recently, ...

What if plants could grow with less water, in poor soil, using less fertilizer or toxic chemical pesticides to produce food for a hungry world? Or what if plants could remove toxic substances from the environment? UCSD plant biologist Julian Schroeder takes you on an exploration of how genetic modification of plants may be able to achieve ...