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Week Twelve Science Warm Ups

1. What do we call the changes in hereditary material?

Answer: mutations

2. What are the two basic types of mutations?

Answer: chromosomal alteration and gene mutation

3. What is the common name for the condition trisomy 21 which occurs because a person has an extra chromosome?

Answer: Down Syndrome

4. What do we call the process of crossing animals or plants with desirable characteristics to produce offspring with the same desirable characteristics?

Answer: selective breeding

5. The process of forming genetically identical offspring from a single cell is in the news a great deal. What do we call this process. Also, explain if you think it is a good thing.

Answer: cloning; answers will vary

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