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Lesson Outline Overview and Objectives - Gene Regions Introduction - Gene Regions Promoter Coding Region Termination Sequence Summary - Gene Regions Lesson Media Objects Gene Regions

Gene Design 1 - Gene Regions Rate Me 1 2 3 4 5 This lesson describes the three gene regions and their roles in gene expression. It also discusses how the regions of a gene can be altered to obtain desired trait expression. Overview and Objectives - Gene Regions Patricia Hain Department of Agronomy and Horticulture at University of Nebraska-Lincoln, USA Don Lee Department of Agronomy and Horticulture at University of Nebraska-Lincoln, USA Lesson Navigation Tips: - Click on ’Animations’ button found to the left in order to view the animation which supplements this lesson. You can also click on the animation icon within the text. - Click once on figures to see enlarged versions. - Click once on words in color to bring up their definitions. This lesson describes the three gene regions and their roles in gene expression. It also discusses how the regions of a gene can be altered to obtain desired trait expression. At the completion of this lesson, you should be able to: Explain why gene design is an important step in the crop genetic engineering process. List the three regions of a gene and explain their roles in gene expression. Describe the two promoters discussed (35S and PEP carboxylase) and how their expression differs. Describe the three Bt coding regions discussed (Cry1A(b), Cry1A(c), and Cry 9c) and how their expression differs. Explain how gene design could be used to deal with pest resistance to the Bt toxin. Development of this lesson was supported in part by Cooperative State Research, Education, & Extension Service, U.S. Dept of Agriculture under Agreement Number 98-EATP-1-0403 administered by Cornell University and the American Distance Education Consortium (ADEC). Any opinions, findings, conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture. Comments Be the first to write a comment... Add Comment

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This project was supported in part by the National Research Initiative Competitive Grants CAP project 2011-68002-30029 from the USDA National Institute of Food and Agriculture, adminstered by the University of California-Davis and by the National Science Foundation (NSF), Division of Undergraduate Education, National SMETE Digital Library Program, Award #0938034, administered by the University of Nebraska. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the USDA or NSF.
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