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Applied Genetics Ch. Applied Genetics Ch. 24 24 How the Principles of Genetics are used.

Applied Genetics Ch. 24

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Applied Genetics Ch. 24. How the Principles of Genetics are used. How have humans applied Genetics?. People have bread plants and animals for specific desirable traits for thousands of years. - PowerPoint PPT Presentation

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Page 1: Applied Genetics Ch. 24

Applied Genetics Ch. 24Applied Genetics Ch. 24

How the Principles of Genetics are used.

Page 2: Applied Genetics Ch. 24

How have humans applied How have humans applied Genetics?Genetics?

People have bread plants and animals for specific desirable traits for thousands of years.

Selective breeding is the crossing of plants and animals with desired characteristics to produce offspring with those characteristics.

Page 3: Applied Genetics Ch. 24

Other cases of Selective Other cases of Selective BreedingBreeding

Disease resistant plants such as corn and wheat.

Variations of flowers for color or shape

Bigger, leaner livestock

Page 4: Applied Genetics Ch. 24

How is a Hybrid produced?How is a Hybrid produced?Sometimes breed offspring with two or

more desired traitsHybridization is the crossing of two

different but related species.Ex. Mule (horse/donkey)Beefalo

Page 5: Applied Genetics Ch. 24

Mule Beefalo

Page 6: Applied Genetics Ch. 24

Some plants offspring are Some plants offspring are bread together?bread together?

Some desired traits are amplified by inbreeding offspring of the same species.This could make a desired trait more

prominent, but will not allow new genes to enter the species.

Page 7: Applied Genetics Ch. 24

Where is the future of Where is the future of Genetics?Genetics?

Genetic Engineering is the process in which genes or pieces of DNA are transferred from one organism to another.

Combining DNA from one organism with the DNA of another.

This process is called recombinant DNA

Page 8: Applied Genetics Ch. 24

Recombinant DNARecombinant DNA

Page 9: Applied Genetics Ch. 24

How does it happen?How does it happen? Usually a gene from a higher organism is placed

into to a lower organism. Human genes have been inserted into bacteria and

yeast to produce certain proteins. Ex. Insulin A gene is usually inserted into a ring of DNA

from bacterial called a plasmid. When the plasmid is placed in a bacteria the

bacteria will produce the protein coded in the plasmid.

Page 10: Applied Genetics Ch. 24

Genetically Engineered Genetically Engineered ProductsProducts

MedicineInsulin, Growth Hormone, Vaccines, interferons

Page 11: Applied Genetics Ch. 24

More Genetically More Genetically Engineered ProductsEngineered Products

AgricultureCrops that fight

diseaseFreeze resistant

crops

Page 12: Applied Genetics Ch. 24

Cloning is apart of Genetic Cloning is apart of Genetic EngineeringEngineering

Monkeys, sheep, and bacteria have already been cloned.

Should humans or parts of humans?

                           

Page 13: Applied Genetics Ch. 24

Is Genetic Engineering Is Genetic Engineering Right?Right?

Arguments ForNew medical

breakthroughsSave livesLimit suffering

from disease

Arguments AgainstIt is “playing God”!We are messing

with nature.It may lead to a

supreme race.

Page 14: Applied Genetics Ch. 24

Web TaskWeb Task Run a web search for information on genetic

engineering. Then in Microsoft Word, summarize two of the

sites you found. Remember to give the addresses.

Once done with the summaries, give your opinion on genetic engineering and support it.

Save your paper to a disk and hand it in. Make sure your name is in the file name.

Page 15: Applied Genetics Ch. 24

Task Scoring RubricTask Scoring Rubric 5points for each site summarized in a

complete well written paragraph. 5points explaining your opinion of genetic

engineering. 5points for supporting your opinion with

facts from sites or from the presentation. Total of 20 points as a quiz grade.