SmithGECrops.09 - Genetically Engineered Crops: Genetically...

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Unformatted text preview: Genetically Engineered Crops: Genetically Engineered Crops: What Are They? What Are They? Whos Growing Them? Whos Growing Them? Whos Eating Them? Whos Eating Them? Who Cares? Who Cares? Margaret Smith Dept. Plant Breeding and Genetics Why the Controversy? Why the Controversy? Genetic engineering - a logical extension of what plant breeders have always done Little understanding of plant breeding __?__ claim they have never eaten a fruit or vegetable that is a product of traditional cross breeding Current products - benefits to consumers unclear Issues of concern Lets get our terms straight: Lets get our terms straight: Biotechnology Genetic Engineering GMOs Biotechnology Biotechnology The use of biological organisms in any technical application Yeast for baking or brewing Bacteria for culturing yogurt Fungi in cheese, tempeh, miso Genetic Engineering Genetic Engineering A subset of biotechnology Alters the properties of organisms by: Transferring individual genes between organisms Modifying a gene within an organism Can include: Turning a gene on or off Correcting a defective gene Moving a gene to a different host About Genetic Material... About Genetic Material... Deoxyribonucleic acid (DNA) Instructions for producing an organism Structural products Regulation of their production An alphabet of four letters (A, T, G, C) Universal Traditional Cross Breeding Traditional Cross Breeding Combines many genes from both parents Parent 1 Parent 2 Offspring Genetic Engineering Genetic Engineering Adds one or a few genes (plus a promoter and a marker) to a particular parent Commercial Variety Gene Donor Transgenic Variety Genetically Modified Organisms Genetically Modified Organisms (or GMOs) (or GMOs) Domestication?...
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This note was uploaded on 05/04/2009 for the course FD SC 150 taught by Professor Gravani&miller during the Spring '07 term at Cornell University (Engineering School).

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SmithGECrops.09 - Genetically Engineered Crops: Genetically...

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