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Genetic Engineering. aka.. Genetic Modification Make changes in DNA code by Insert or delete specific genes Use modern molecular biology techniques.

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Presentation on theme: "Genetic Engineering. aka.. Genetic Modification Make changes in DNA code by Insert or delete specific genes Use modern molecular biology techniques."— Presentation transcript:

1 Genetic Engineering

2 aka.. Genetic Modification Make changes in DNA code by Insert or delete specific genes Use modern molecular biology techniques.

3 1) Recombinant DNA  Aka.. Gene Splicing made by combining DNA from > 1 source (often from very different species)

4 2) Gel electrophoresis An electric current smaller fragments - faster larger ones – slower DNA fragments move to positive end + - AB DNA on murder weapon

5 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

6 SMART

7 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

8 SMART Come back!!!!

9 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)

10

11 6) Gene Therapy the insertion of normal or genetically altered genes into cells usually to replace defective genes (cancer & genetic disorders) Eye cancer

12 SMART

13 My lab experience…….

14 SMART Come back!!!!


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