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Published byEdgar Wilcox Modified over 8 years ago
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Genetic Engineering
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aka.. Genetic Modification Make changes in DNA code by Insert or delete specific genes Use modern molecular biology techniques.
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1) Recombinant DNA Aka.. Gene Splicing made by combining DNA from > 1 source (often from very different species)
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2) Gel electrophoresis An electric current smaller fragments - faster larger ones – slower DNA fragments move to positive end + - AB DNA on murder weapon
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3)Transgenic organisms transgenic animal Mice--- so immune sys more like humans- can study ‘em Livestock --- leaner meat carries a foreign gene, deliberately inserted into its genome. transgenic plant Soybeans/corn/crops --- to produce nat insecticiside so don’t have to be sprayed Also: Improved Nutritional Quality Insect Resistance Disease Resistance Drought Tolerance
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SMART
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4) Cloning replacing the nucleus of an unfertilized ovum with the nucleus of a body cell from the organism. first adult mammal cloned was Dolly in 1997 Clone --- genetically identical copy
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SMART Come back!!!!
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5) DNA Fingerprinting Compare genetic similarities/differences b/w individuals. often used to ID source of blood / tissue found at crime scenes. Polymerase Chain Reaction (PCR)
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6) Gene Therapy the insertion of normal or genetically altered genes into cells usually to replace defective genes (cancer & genetic disorders) Eye cancer
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SMART
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My lab experience…….
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SMART Come back!!!!
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