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Transcript
Chapter 13:Genetic Engineering (13-4) Genes from other organisms can work together and still function (ex. luciferase and tobacco plants) Transgenic—contain genes from other organisms A gene from one organism can be inserted into cells from another organism. Genetic engineering has spurred the growth of biotechnology, a new industry that is changing the way we interact with the living world. Bacteria—insulin, growth hormone, clotting factors, interferon. Future??? Substances to fight cancer, or make materials, synthetic fibers Study genes, improve food supply Transgenic livestock—extra copies of growth hormone genes (grow faster, less fat) Chapter 13:Genetic Engineering (13-4) Future??? Disease/bacteria resistant chickens….and, animals that can produce human proteins in their milk. Year 2000, 52% of soybeans, and 25% of corn grown in the U.S. were transgenic of genetically modified. Produce natural insecticide (no spraying) Plants/foods resistant to rot Rice plants that add vitamin A, major food to billions. Clone- members of a population of genetically identical cells produced from a single cell. Cloned colonies of bacterial cells are easy to grow…this is not true for multicellular organisms. Ian Wilmut’s technique produced such a clone (Dolly)…see page 332-333 (figure 13-13)