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        9-12

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        Auditory, Visual

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        Part of QUEST
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        Engineering Biofuels

        This video segment adapted from KQED's QUEST profiles the work of Jay Keasling, a synthetic biologist experimenting with ways to produce a cleaner-burning fuel from biological matter, using genetically modified microorganisms. Keasling's approach involves engineering microbes to eat simple sugars found in plant matter and then excrete fuel. The video explains the two techniques that may enable Keasling to accomplish this: metabolic engineering and directed evolution. It also suggests that creating biofuels from plants may actually contribute to global warming rather than help combat it.

        This media asset was adapted from KQED Quest: "Biofuels: Beyond Ethanol".

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