Biotechnology manipulates living things to make useful products.

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Biotechnology manipulates living things to make
useful products.

• http//www.youtube.com/watch?vOcG9q9cPqm4 441
  The Invisible Revolution biotechnology
• 1. What are the ethical issues? -
  Agriculture - Industry/manufacturing
• 2. How do each affect the economy? -
  Medicine - Environment
• 3. What affect does biotechnology have -
  Energy - Careers
• on careers that are available?
• 
  
• Aspects of biotechnology include
• - specific genetic information available
• - careers
• - ethical issues
• - implications for agriculture
• - economic benefits to North Carolina
• Examples Circle each one on your study guide.
• Crossbreeding
• Selective Breeding

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Three Basic Kinds of Biotechnology Tools

• Working with Cells
• - stem cells
• 2. Working with Proteins
• - protein coat on cells
• 3. Working with Genes
• - genetic engineering

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Crossbreeding two different kinds/breeds of
organisms are bred together
Examples
Tiger

Lion
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Liger (infertile)
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• Donkey Horse

A donkey and a horse will produce offspring
called a ___________.
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Mule (infertile)
What are the advantages and disadvantages of
cross breeding?
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Selective Breeding the intentional mating of
organisms to produce offspring with specific
traits

• Examples
• cows that have been observed producing large
  volumes of milk
• breeding to pass traits on to ensuing generations
  have similar traits
• race horses bred for speed, distance
• dogs bred for particular traits (color, size,
  temperament, hypoallergenic)

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Selective Breeding in Dogs

• The Australian Dinghound
• Originated in New Zealand, these dogs were used
  to herd sheep. They were brought to Australia in
  1857 by Sir Sidney Melbourne. The Australians,
  not needing another breed of shepherd dog, bred
  the dogs with wild Dingoes.
• The result was a new breed of large shaggy black
  dogs with unusual spotted markings. The
  Australians used the new breed to guard houses.
• Dinghounds proved valuable as watchdogs because
  of their ability to sense danger as well as
  insincerity.
• What advantages are there to selective breeding?

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Selective Breeding Wolf Ancestors
What are the advantages and disadvantages of
selective breeding?
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Genetic Modification changes the genetic
material of a living organism

• Medicines
• Treatment of Diseases
• Vegetables
• Fruits

Ethical Issues
http//www.youtube.com/watch?vcPa8Vxqvkn0 spider
and sheep
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What are some of the advantages of GM foods? ?
Pest resistance (insecticides)? Herbicide
tolerance ? Disease resistance ? Cold
tolerance (see WXII news segment)http//www.wxii1
2.com/news/local-news/piedmont/farmers-perpare-for
-jack-frost/-/10703612/22599854/-/1034po8/-/index.
html?absolutetrue? Drought tolerance/salinity
tolerance ? Nutrition
Put these examples in your notebook. ?
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Continued Advantages of GM Products

• ? Pharmaceuticals edible vaccines in tomatoes
  and potatoes much easier to ship, store and
  administer than traditional injectable vaccines.
• ? Phytoremediation Plants such as poplar trees
  have been genetically engineered to clean up
  heavy metal pollution.

What are the advantages and disadvantages of
genetic modifications?
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What do you think? Pros Cons of GM Foods
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GM Foods In U.S.

• Corn - Strawberries
• Soy bean - Zucchini
• Sugar cane - Pineapples
• Tomatoes - Cocoa Beans
• Potato - Yellow Squash
• Sweet Potatoes - Bananas

Genetically modified cows can produce lactose
free milk.
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Cloning three types of cloning technologies
are (This information will not be on your test.
?)

• recombinant DNA technology or DNA
• cloning
• (2) reproductive cloning
• (3) therapeutic cloning (embryo cloning)

What are the ethical Issues?
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(1) recombinant DNA technology or DNA
cloning(This information will not be on your
test. ?)

• transfer of a DNA fragment of interest from one
  organism to a self-replicating genetic element
  such as a bacterial plasmid
• DNA of interest can then be reproduced in a
  foreign host cell

What are the ethical Issues?
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(2) reproductive cloning (This information will
not be on your test. ?)

• Dolly, the first mammal to be cloned from adult
  DNA, died at age 6.
• Dolly or any other animal created using nuclear
  transfer technology is not truly an identical
  clone of the donor animal.
• Dolly was only one success out of 276 tries.

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used to generate an animal that has the same
nuclear DNA as another currently or
previously existing animal. - The
reconstructed egg containing the DNA from a
donor cell must be treated with chemicals or
electric current in order to stimulate cell
division. - Once the cloned embryo reaches a
suitable stage, it is transferred to the
uterus of a female host where it continues to
develop until birth.
(This information will not be on your test. ?)
What are the ethical Issues?
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(3) therapeutic cloning (embryo cloning)
(This information will not be on your test. ?)

• goal is not to create cloned human beings, but
  rather to harvest stem cells that can be used
  to study human development and to treat disease.
• Stem cells are important to biomedical
  researchers because they can be used to generate
  virtually any type of specialized cell in the
  human body.
• - Many researchers hope that one day stem cells
  can be used to serve as replacement cells to
  treat heart disease, Alzheimer's, cancer, and
  other diseases.

What are the ethical Issues?
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Bioremediation the completely safe and
natural process of cleaning up organic
contaminants through the use of microbes (i.e.
bacteria).
Biotechnology Applications to the Environment
Sewage spills
Oil spills
Gasoline contamination
Toxic waste spills
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Bioremediation
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Bioremediation Before and After
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Biotechnology Energy

• Biomass fuels
• - eliminates harmful emissions
• - renewable source of energy
• - reduces our dependency on fossil
• fuels and other countries that supply
• them
• - fewer contaminants enter waterways

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Duke Energy Duke University methane project
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