CAMBRIDGE, Mass.--Joule Unlimited is one of many companies using gene databases and genetic engineering to design a better system for making biofuels. Here the senior vice president of biological services, Dan Robertson, shows off a petri dish where employees grow different strains of a cyanobacteria Joule Unlimited has engineered to make diesel fuel.
March 25, 2011 4:00 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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