311Dsp08AnimalIntro

311Dsp08AnimalIntro - Bonus#2 due now(Bonus#3 is posted...

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Unformatted text preview: Bonus #2 due now (Bonus #3 is posted) Today: plant biotech and an intro to animals Human resource production and use http://www.earth-policy.org/Indicators/Grain/2006.htm Worldwide Grain Production and Consumption We can now directly insert new genes into or modify existing genes of plants CB 20.2 Why Change a Plant’s DNA? • Can change plant so that it has new or different characteristics – Produce needed protein – Insect resistance (Bt toxin) – Herbicide resistance (Round-up) – Drought or other stress resistance – Chemical remediation Millions of Hectares Texas = 70 ha Is genetically engineering plants a good idea? http://www.gmo-compass.org/eng/agri_biotechnology/gmo_planting/257.global_gm_planting_2006.html Worldwide area planted with genetically modified crops Is changing a plant’s DNA a good or bad idea? • Genes flow within species and between species. • Are GM foods safe for the environment? • Are GM foods profitable for: – Consumers, Farmers, and Companies? Pollution in Gulf of Mexico from run-off in the Mississippi river http://blog.nola.com/times-picayune/2007/06/ (Staff graphic by Dan Swenson) ‘07 Pollen is easily transferred from plant to plant, and to related species.and to related species....
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311Dsp08AnimalIntro - Bonus#2 due now(Bonus#3 is posted...

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