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Medical and pharmaceutical applications
· Medical applications of DNA technology include diagnostic tests for genetic and other diseases, safer and more effective vaccines, and the large scale production of many new pharmaceutical products. It is possible to produce some important hormones and enzymes. Industrial applications · By using DNA technologies some cleaning products, such as detergents, are produced. Agricultural applications · Recombinant DNA technology is being used to improve crops in a number of ways, by increasing their productivity and by making them more nutritious and cold resistant. Recombinant DNA technology promises many practical benefits in the field of agriculture. Some milk cows are being injected with bovine growth hormone (BGH) produced by genetically modified E. coli in order to increase milk production. In plants, some herbicide-resistant plants have been produced. Forensics applications · DNA fingerprints obtained from several samples of tissue found at the scenes of violent crimes provide evidence in trials. It is also useful in paternity disputes. Environmental or ecological applications · Genetic engineering can be used to modify the metabolism of microorganisms so that they can be used to extract minerals from the environment or degrade waste. For example, many bacteria can extract heavy metals, such as copper, lead, and nickel from their environment and incorporate the metals into compounds such as copper sulfate or lead sulfate which are readily recoverable. Exercises
Match the terms with their definitions
Answer the questions
Match the sentence halves
Human gene therapy Gene therapy is the treatment of human diseases. It involves 3 steps: 1) the removal of some of the patient's cells; 2) the introduction of normal, functional copies of genes that are defective in the patient into these cells; and, 3) the rein- troduction of transgenic repaired cells into the patient.
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