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4H 949 January 2003 O F F I C E O F B I O T E C H N O L O G Y I O W A S T A T E U N I V E R S I T Y 18 U.S.C. 707 Curriculum modules for grades 9-12 about insect-resistant crops using Bt bacteria huringiensis Sharing Its Natural Talent With Crops Prepared by the Office of Biotechnology Iowa State University acillus B Science behind Bt crops Crops that use Bt Production issues Ethical, social, legal issues t
