13-4 Applications of Genetic Engineering

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Applications of Genetic Engineering
KEY CONCEPT DNA sequences of organisms can be changed.
KEY CONCEPT DNA sequences of organisms can be changed.
Copyright Pearson Prentice Hall
Presentation transcript:

13-4 Applications of Genetic Engineering Questions to think about??? How are transgenic organisms made? What are the mains steps in cloning?

Some Background Info… We know that DNA from one organism can be inserted into another Does that mean that gene works the same way in a different organism? YES!!! The gene for luciferase from a firefly was added to the DNA of a tobacco plant The recombinant plants glow 

Transgenic Organisms Organisms that contain genes from other organisms Genetic Engineering allows scientist to insert genes from one organism into another organisms cells. These cells can grow into new genetically “modified” organisms

http://www. scientificamerican http://www.scientificamerican.com/article/gmo-what-is-genetically-modified-food-video/

Examples of Transgenic Organisms Microorganisms Transgenic bacteria Make necessary human proteins like insulin and growth hormones Animals Used in scientific research & to increase food supply Mice inserted with human genes to study immune response Livestock have extra copies of growth hormone genes Plants Crops inserted with genes that produce insecticides 93% of soybeans and 88% of corn in the U.S. is G.M. (genetically modified)

Cloning Clone-population of genetically identical cells made from 1 cell 1997 Ian Wilmut cloned a sheep Nucleus of the egg is removed Empty cell is fused with a cell from an adult Fused cell is placed in the reproductive system of a foster mother Hello Dolly!

https://www.youtube.com/watch?v=qfNUGNsuw7o

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