The Case of the Tainted Taco Shells: General Edition

Author:	Ann T.S. Taylor Department of Chemistry Wabash College taylora@wabash.edu
Abstract:	This case discusses some of the issues associated with the use of genetically modified plants, including ecological risks, resistance, and allergenicity. The case has two versions, or editions. This edition (the "General Edition") emphasizes the basic biochemistry and scientific ethics issues associated with genetically modified foods. Originally developed for use in a biochemistry course, it is also appropriate for use in a non-majors general, organic, and biochemistry (GOB) course and in a general biology course. The "Advanced Edition," also published on this site, probes the same issues but in greater detail and is appropriate for upper-level biochemistry, cell biology, and genetics classes.
Objectives:	Understand how a transgenic plant is made. Feel comfortable reading a primary literature article (at an appropriate level for the class). Understand the issues surrounding the use of genetically modified foods, including environmental effects and concerns about resistance. See how scientists have to deal with uncertainty and risk assessment. Understand why Roundup is toxic to plants but not to animals Understand the methods used to predict allergenicity.
Keywords:	Genetically modified organism; GMO; genetically modified plant; transgenic food; corn, Bacillus thuringiensis; Roundup; weeds; allergy; allergens; allergenicity; risk assessment; resistance
Topical Area:	Ethics
Educational Level:	High school, Undergraduate lower division
Formats:	PDF
Type/Method:	Analysis (Issues), Discussion, Journal Article, Role-Play
Language:	English
Subject Headings:	Biochemistry Chemistry (General) Biology (General) Biotechnology Botany / Plant Science Agriculture
Date Posted:	03/17/04
Date Modified:	N/A
Copyright:	Copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work.

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