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Published byViolet Jenkins Modified over 9 years ago
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Definition: Use of living organisms (microorganisms) to make new products or carry out new processes (solve problems). New product Yogurt New Process Tissue culture - propagation method that rapidly multiplies plants
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Use of yeast to make bread rise. Use of bacteria to produce various kinds of cheeses and other dairy products. Use of microorganisms to transform fruit or grains into alcoholic beverages. Use of bacteria to “produce” silage E.coli bacteria used to produce insulin. It became one of the first commercial products created by genetic engineering.
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Austrian monk, Gregor Johann Mendel discovered the effect of genetics on plant characteristics with his experimentation with garden peas Heredity transmission of characteristics from an organism to its offspring through genes in reproductive cells
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Genes Segments of double stranded DNA that determines the individual characteristics of living things ▪ Ex: plant height at maturity, flower color, ears of corn per stalk. Generation is the offspring, or progeny, of common parents.
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Chromosome structure that holds the genetic information of a cell DNA is wound tightly to form the chromosome. DNA deoxyribonucleic acid coded material in all cell nuclei that determines what that cell and its successive cells will become Shaped like a twisted ladder called a double helix
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Gene A small section of DNA. There are thousands of genes on a strand of DNA. Gene mapping The process of finding and recording the locations of genes Bases Similar to rungs of a ladder that hold the two sides of the DNA strands together
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The bases are: Adenine (A) - only pairs with “T” Thymine (T) – only pairs with “A” Guanine (G) – only pairs with “C” Cytosine (C) – only pairs with “G” ▪ Example: ▪ A – T ▪ G – C ▪ T - A The sequence of the bases between the DNA strands is the code by which a gene controls a specific trait Example: ▪ baldness in humans, tendency of female goats to have twin offspring
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1. Genetic Engineering 2. Cloning 3. Indicator Species 4. Bioremediation 5. Biostimulation 6. Phytoremediation 7. Animal Reproduction and Prodution 8. Biofuels
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Process of moving genetic information in the form of genes from one cell to another. Developed in the early 1980’s Gene splicing or Recombinant DNA technology process of removing and inserting genes from one organism and inserting them into the DNA of another 1.Alter a plant’s susceptibility to disease. 2.Make a plant resistant to insects. 3.Process in animals is newer and not as well developed techniques exist yet.
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Known as “micropropagation” in plants Creating an exact genetic duplicate of another organism.
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One of the oldest methods of biological detection Uses plants, animals and microbes to warn us about pollutants in the environment
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A set of techniques that use living organisms to clean up toxic wastes in water and soil.
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Adding nutrients such as nitrogen and phosphorus to stimulate the growth of naturally occurring beneficial microbes for faster, more efficient work.
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The process of plants absorbing or immobilizing pollutants. First tested actively at sites in the 1990’s.
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The processes used in improving the efficiency of reproduction and production. These are considered the more conventional (traditional) uses of biotechnology.
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Fuels composed of or produced from biological raw materials
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Joining of DNA from two different species and inserted into host organism Improve plants’ and animals’ performance through the manipulation of genes. Alter characteristics or performance of microorganisms Great potential for controlling disease, insects, weeds, and other pests Less use of chemical pesticides Potential for helping clean the environment
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Safety State and federal government monitor the development of newly developed biotech crops Consumer resistance remains high due to safety of the environment and human health concerns Some people can create a fear of the unknown Labeling of genetically modified organisms (GMO) foods ▪ many people feel if a product is safe it should be labeled Effect GMO’s may have on biodiversity Ethics System of moral principles that defines what is right and wrong in a society The ability to manipulate genetics of living organisms raises important ethical questions about how biotechnology should be used
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Herbicide – tolerant soybean Also known as “RoundUp Ready Soybeans” contains a gene that provides resistance to one or two broad spectrum herbicides. Other RoundUP Ready crops: Canola, Corn, Cotton, Alfalfa, Lettuce, Potatoes, Sugar Beets, and Tomatoes Insect- resistant corn (Bt corn) contains a built-in insecticidal protein from a naturally occurring soil microorganism (Bt – Bacillus thuringiensis) that gives season- long control of corn borers.
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High Oleic Peanut genetically modified to produce nuts in high oleic acid that results in longer life for nuts, candy and peanut butter High Oleic Sunflower modified to produce sunflower oil that is low in trans-fatty acids Delayed- ripening tomato the longer shelf life has commercial advantages in harvesting and shipping
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Also known as micropropagation Using a very small, actively growing part of the plant to produce a large number of new plants Example: African violets
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