10 How is a DNA molecule constructed so that it will eliminate a particular

10 how is a dna molecule constructed so that it will

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10. How is a DNA molecule constructed so that it will eliminate a particular gene? 11. Is the following sentence true or false? Gene replacement has made it possible to identify the specific functions of genes in many organisms. 120 Section 13–4 Applications of Genetic Engineering (pages 331–333) Key Concept How are transgenic organisms useful to human beings? Introduction (page 331) 1. How do scientists know that plants and animals share the same basic mechanisms of gene expression? Transgenic Organisms (pages 331–333) 2. What is a transgenic organism? 3. Describe how to make a transgenic organism. 4. Genetic engineering has spurred the growth of , a new industry that is changing the way we interact with the living world. 5.Circle the letter of each sentence that is true about transgenic microorganisms. a.Transgenic bacteria will never produce useful substances for health and industry.b.Transgenic bacteria produce human proteins cheaply and in great abundance.c.People with insulin-dependent diabetes are now treated with pure human insulin.d.In the future, transgenic organisms may produce the raw materials for plastics. 6.List four ways in which transgenic animals have been used. 7.Many transgenic plants contain genes that produce a natural, sothe crops do not have to be sprayed with pesticides.
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Name______________________________ Class__________________ Date ______________ 121 8. Circle the letter of each item that might soon be produced by transgenic plants. Cloning (page 333) 9. What is a clone? 10. Is the following sentence true or false? For years, many scientists thought that it was impossible to clone bacteria. 11. Complete the sentences in the diagram below to show the steps in cloning a sheep. 12. Is the following sentence true or false? All cloned animals are also transgenic. 13. What kinds of mammals have been cloned in recent years? Donor Nucleus The of an egg cell is removed. The is placed in the uterus of a foster mother, where it develops normally. The egg cell is fused with a(an) taken from another adult using an electric shock. The fused cell begins to normally. Egg Cell Cloned Lamb Fused Cell Embryo
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  • Spring '16
  • DNA, egg cell

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