genetic engineering. major techniques pcr – polymerase chain reaction restriction endonucleases...
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Genetic Engineering
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Major Techniques• PCR –
• Polymerase Chain Reaction
• Restriction Endonucleases and Gel Electrophoresis
• DNA Profiling/DNA Fingerprinting
• Gene Transfer: Transformation
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Polymerase Chain Reaction
• Used to make millions of copies of select section of DNA
• When small amount of DNA are found but large amounts are needed for analysis
• Semen, blood, other tissues, long-dead specimens – DNA from all can be amplified
• Thermus aquaticus – hot springs bacterium • http://www.dnalc.org/ddnalc.org/resources/pcr.ht
ml
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Gel Electrophoresis
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• Separate DNA, proteins or other molecules based on charge and size
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DNA Profiling/Fingerprinting
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DNA Profiling Uses
• CSI
• Paternity
• CDC – epidemiology: disease transmission
• Geneology
• Breeding authenticity
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• Who did it?
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Gene Transfer and GMOs
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Organisms that have had genes transferred into them from a different
species are GMOs or Transgenic Orgs.
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Pros and Cons of GMOs
• Be able to explain the + and – of Bt maize.
• At least 2 arguments for each case
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Animal/Plant Cloning• Plants = easy….from parts. Animals = difficult
• Procedure:
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Therapeutic Cloning
• Be able to argue for and against TC with at least two points in each case
• Be able to summarize the aims, outcome (to date) and benefits of the Human Genome Project (THGP)