Biologists Use Genetic Circuits to Program Plant Roots

When the physicist Richard Feynman died in 1988, he left a note on his blackboard that read, “What I cannot create, I do not understand.” Feynman may have been reflecting on the nature of scientific understanding, but the sentiment also reflects the spirit of synthetic biology. That scientific field is all about deconstructing and precisely manipulating biological processes to test our grasp of…

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