Presentation on theme: "Applied Genetics Ch. 24 How the Principles of Genetics are used."— Presentation transcript:
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. Selective breeding is the crossing of plants and animals with desired characteristics to produce offspring with those characteristics. Selective breeding
Other cases of Selective Breeding Disease resistant plants such as corn and wheat. Variations of flowers for color or shape Bigger, leaner livestock
How is a Hybrid produced? Sometimes breed offspring with two or more desired traits Hybridization is the crossing of two different but related species. Hybridization Ex. Mule (horse/donkey) Beefalo
Some plants offspring are 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.
Where is the future of 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
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.
More Genetically Engineered Products Agriculture Crops that fight disease Freeze resistant crops
Cloning is apart of Genetic Engineering Monkeys, sheep, and bacteria have already been cloned. Should humans or parts of humans?
Is Genetic Engineering Right? Arguments For New medical breakthroughs Save lives Limit suffering from disease Arguments Against It is “playing God”! We are messing with nature. It may lead to a supreme race.
Web 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.
Task 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.