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C an we (should we) do this now?

C an we (should we) do this now?. Should we genetically engineer humans? Do we?. Homework. Vocab Words – Quiz on Friday 66. Disruptive Selection 67. Type 1 Survivorship 68. Biomes 69. Ecotones 70. Aquifers

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C an we (should we) do this now?

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  1. Can we (should we) do this now? • Should we genetically engineer humans? Do we?

  2. Homework • Vocab Words – Quiz on Friday • 66. Disruptive Selection • 67. Type 1 Survivorship • 68. Biomes • 69. Ecotones • 70. Aquifers • Reading Chapter 11 pages 281 – 290 stopping at Biodiversity loss involves more than extinction. • Due next time we meet.

  3. News item • Boston declares public health emergency as flu cases rise nationwide • Will (would) the flu shot stop this? • Read more: http://www.foxnews.com/health/2013/01/10/boston-declares-public-health-emergency-as-flu-cases-rise-nationwide/?test=latestnews#ixzz2HaVpbgwc

  4. Question from yesterday • Write down how they are attempting to re-create the Woolly Mammoth?

  5. Boards • Write down (with the use of your notes) an explanation of the following. Be prepared to share on the “board.” • Genetic engineering =??? • Genetically modified (GM) organisms = ??? • Recombinant DNA = ???

  6. Boards - answers • Genetic engineering =laboratory manipulation of genetic material • Add, delete, modify DNA • Genetically modified (GM) organisms = organisms that have been genetically engineered by … • Recombinant DNA = DNA created from multiple organisms

  7. New material – Chapter 10 • Biotechnology = the application of biological science to create products derived from organisms • Transgenic organism = an organism that contains DNA from another species • Transgenes =the genes that have moved between organisms

  8. New material – Chapter 10 • Traditional breeding = changes organisms through selective breeding of the same or similar species • Genetic engineering = mixes genes of different species

  9. New material – Chapter 10 • Major controversy over GM crops based on patents. • Monsanto (seed maker) has launched 112 lawsuits against 372 farmers, winning an average $385,000 per case • Monsanto sued Percy Schmeiser(small farmer) of Canada for using its GM seeds without paying for them • Schmeiser said the seeds blew onto his field from adjacent fields • The courts sided with Monsanto, saying that Schmeiser had violated Monsanto’s patent by using the seeds.

  10. New material – Chapter 10 • Land and water are needed to raise food for livestock • Producing eggs and chicken meat requires the least space and water • Producing beef requires the most

  11. New material – Chapter 10 • How water & land necessary to produce meat (red), milk, chicken, eggs,…

  12. New material – Chapter 10 • Feedlots (factory farms) = also called Concentrated Animal Feeding Operations (CAFOs)

  13. New material – Chapter 10 • What are the issues with Feed lots? • Feedlots produce huge amounts of manure and urine • Causing eutrophication • Waterborne pathogens sicken people • Crowded, dirty housing causes outbreaks in disease

  14. New material – Chapter 10 • What are organic foods? • Are they healthier? Yes or no, why? • "Current evidence does not support any meaningful nutritional benefits or deficits from eating organic compared with conventionally grown foods, and there are no well-powered human studies that directly demonstrate health benefits or disease protection as a result of consuming an organic diet,“ • http://www.usatoday.com/story/news/nation/2012/10/22/pediatricians-organic-foods/1650013/

  15. New material – Chapter 10 • Also, another source – NPR: • http://www.npr.org/blogs/thesalt/2012/09/04/160395259/why-organic-food-may-not-be-healthier-for-you • So if this is the case why buy organics? • More for what is NOT in the food than what makes up the food.

  16. New material – Chapter 11 • Also, why is inbreeding so controversial? • How does this happen?

  17. New material – Chapter 11 • A step further:

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