Class Notes 1

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Class Notes 1

• Genetic Technology

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I. Selective Breeding

1. By breeding the best plants and animals, we get
   the biggest and most delicious produce and meat.

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B. We also get purebred pets and more beautiful
plants
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II. Recombinant DNA

• When fragments of DNA are cut or cleaved from
  one organism and inserted into another (the
  host).
• B. The new organism now has its own DNA combined
  with other DNA transgenic
• organism

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Facts DO NOT WRITE

• Scientists have cloned transgenic pigs that grow
  human organs !
• Bacteria can be injected with DNA so they make
  human proteins, like insulin for diabetes.

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DO NOT WRITE

• 50 of soybeans and 25 of the corn grown in the
  U.S. in 2005 is transgenic.
• Many have genes that produce an insecticide

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III. Clones

• A clone is an organism produced from the cell of
  another organism. It has the same DNA!!
• Cloning may save endangered species, but the
  animals may have more health problems.
• The 1st cloned cat
• Copycat

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IV. The Human Genome Project

1. Started by U.S. scientists in 1990
2. Finding out what chromosome each gene is located
   on
3. The genes DNA sequence is then determined.

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V. Gene therapy

• A. In the future, genetic disorders may be
  corrected by inserting normal genes into
  disfunctional chromosomes.

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Summary

• What are some ways that genetic technology may
  improve our lives in the future?