Washington State University biochemist Norman Lewis inspects cuttings from genetically engineered poplars in a Western Washington greenhouse, Jan. 13, 2014. Lewis and his colleagues goal is to turn poplars into living factories that churn out modest levels of chemicals with premium price tags. (AP Photo/The Seattle Times, Greg Gilbert) OUTS: SEATTLE OUT, USA TODAY OUT, MAGAZINES OUT, TELEVISION OUT, SALES OUT. MANDATORY CREDIT TO: GREG GILBERT/THE SEATTLE TIMES.
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