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These days, Cissé, a newly minted American citizen, is breaking paradigms instead of electronics. He and colleagues are making movies using super-resolution microscopes to learn how genes are turned on. Researchers have spent decades studying this fundamental question.
Cissé thinks physics can help biologists better understand and predict the process of turning genes on, which involves copying genetic instructions from DNA into RNA. His work describes how and when proteins congregate to instigate this process, which keeps cells functioning properly throughout life.