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e-Journal

Trouble on the Table (pp. 134–135)


Step 1. Questions

Plants have been genetically manipulated by crossbreeding for thousands of years. Many varieties of fruits and vegetables have been produced in this way. Today, scientists use new methods to create genetically modified foods, or GM foods, much faster than before. These foods are also known as transgenic crops.

Write a personal narrative about the issues related to GM foods. In this story, you will be a farmer who must decide which type of crops to plant, traditional foods or GM foods. To write your personal narrative, you will need to research the advantages and risks of agricultural genetic engineering. Here are some questions to guide your research:
  • Why are food crops being genetically modified?
  • What are the advantages of GM foods?
  • What are the risks of GM foods?
  • Should people grow GM foods?
Are you ready? Begin by visiting the Web sites in Step 2. Look for answers to the questions above, and write down what you learn in the note-taking boxes.

With teacher supervision, you may use search engines to research other Web sites. You also can research GM foods at the library. When you are ready, follow Steps 3 and 4 to write your personal narrative.



Step 2. Research

Research answers to the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!


Toolbox Tip: Click here to learn what plug-ins are and how to install them on a computer.


Engineer a Crop
This PBS Web site lets you compare traditional methods of crossbreeding plants with the methods of genetic engineering. Click SELECTIVE BREEDING to use traditional methods to try to make an ear of corn larger. Next, go back and click TRANSGENIC MANIPULATION to use genetic engineering to create a super crop. When you are done, you can click WHAT'S FOR DINNER to find out more about GM foods. Click VIEWPOINTS to read about the issues surrounding GM foods. Both of these buttons are located at the bottom of the screen.
Take Notes:



Field of Genes
This Web site from the Why Files offers information on agricultural genetic engineering. Click MOVE GENES to find out how scientists transfer genes between organisms. This Web site also has information on the issues surrounding GM foods. Go back and click IS IT WISE to read one person's point of view on herbicide-resistant crops.
Take Notes:



Transgenic Crops Risks and Concerns
You will find a balanced presentation of the advantages and risks of GM foods at this Web site. When you have finished reading the information, click ANIMATION DEMO, found at the top left side of the page. Researchers from Colorado State University developed this Web site.
Take Notes:



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