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Text 4.2. Down's Syndrome And Genetic Screening
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■ 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:
| 1. | disability | A. | a fault or a lack of something that means that something is not perfect |
| 2. | disease | B. | a small part or amount of something that is examined in order to find out something about the whole |
| 3. | defect | C. | happening or done without being planned or organized |
| 4. | to prevent | D. | to receive money, property etc. from someone after they have died |
| 5. | to inherit | E. | the final result of a meeting, discussion, war etc., especially when no one knows what it will be until it actually happens |
| 6. | to observe | F. | to stop something from happening or stop someone from doing something |
| 7. | sample | G. | the act of ending something or the end of something |
| 8. | spontaneous | H. | to and notice something; to watch something or someone carefully |
| 9. | outcome | I. | a physical problem that makes someone unable to use a part of their body properly |
| 10. | termination | J. | an illness or unhealthy condition in your body, especially one caused by infection |
■ Read the given text and make your essential assignments:
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