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Text 4.2. Down's Syndrome And Genetic Screening
■ Essential targets: By the end of this text you should be able to · explain how Down’s syndrome arises; · compare the main features of amniocentesis and chorionic villus sampling; · discuss the role of a genetic counselor. Pre-reading Try and answer the following questions. Then check your answers by reading the text. 1. What do you know about Down’s syndrome? 2. Who and what is the syndrome named after? 3. What do children with Down’s syndrome look like? Exercise A. Match the words with their definitions:
■ Read the given text and make your essential assignments:
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