B2.6 genetic engineering
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B2.6 genetic engineering

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  • Rearrange and use coloured paper, scissors and glue to model. Support
  • Complete table.
  • The blue rose was created using genetic modification by Suntory Flowers in 2008 (see http://www.telegraph.co.uk/news/worldnews/asia/japan/3329213/Worlds-first-blue-roses-after-20-years-of-research.html), while the ‘black’ tulip is actually a dark purple colour and has been around since before the advent of genetic engineering.
  • Purple tomatoes have been created by genetic modification to contain more antioxidants than normal tomatoes (see http://news.bbc.co.uk/1/hi/7688310.stm), whereas these purple carrots are naturally occurring and may have been one of the earliest forms of carrot, originating in modern-day Afghanistan over 5000 years ago (see http://www.carrotmuseum.co.uk/history.html).

B2.6 genetic engineering Presentation Transcript

  • 1. Genetic engineering Scientists can remove a gene from one organism and insert it into a DNA of another organism.
  • 2. This species of jelly fish naturally have the ability to glow in the dark. The gene that is responsible for this has been used in genetic engineering…
  • 3. Genetic engineering WALT: To understand how genetic engineering can be used to treat diseases and to consider the advantages and disadvantages behind this technology. WILF: ~ State what genetic engineering is and list examples of when it is used. (D) ~ Discuss some of the advantages and disadvantages of genetic engineering for particular examples. (C) ~ Explain how the process of genetic engineering occurs using enzymes. (B) ~ Evaluate the issues behind genetic engineering. (A/A*) Keywords genetic engineering genetically modified organisms insulin beta-carotene herbicide
  • 4. Use the diagram on 38 to rearrange these statements to show how the process of genetic engineering takes place. Bacteria will then reproduce to make lots of copies of the particular gene. ‘Cutting’ enzymes are used to separate the gene from the chromosome. The gene is then inserted into a bacterial plasmid using ‘sticking’ enzymes. A gene on a human chromosome is identified, for example, the gene for insulin.
  • 5. A gene on a human chromosome is identified, for example, the gene for insulin. ‘Cutting’ enzymes are used to separate the gene from the chromosome. The gene is then inserted into a bacterial plasmid using ‘sticking’ enzymes. Bacteria will then reproduce to make lots of copies of the particular human gene.
  • 6. What’s the question? Write a question that will fit the answers below. 1.Genetic engineering 2. Insulin 1.Plasmid 2.Enzymes
  • 7. Examples of genetic engineering Production of human insulin Beta-carotene in wild rice Read the information on page 38 and 39 to identify the advantages and disadvantages of using genetic engineering for these three examples. Herbicideresistant crops
  • 8. Used to be May produce Decreases the extracted herbicide number of animals from pigs but resistant killed. now it is weeds. extracted GM Doesn’t suit every bacteria it diabetic. Loss of can be used biodiversity. Needed by by vegans. humans to make Can be made in vitamin A. large quantities and cheaply. Reduce the amount of crop Contaminate spraying. Might harm other crops by people. crossbreeding.
  • 9. Write a piece of for a campaign website, arguing if you are either for or against genetic engineering. Success criteria ~ What is genetic engineering? ~ Describe some examples ~ Explain your own opinion
  • 10. Exam practice Genetic engineering involves removing a particular gene from one organism and inserting into the DNA of another. Using you knowledge explain one example of how genetic engineering is used, discussing the advantages and disadvantages. (4 marks)