Genetic Variation Worksheet
Explore the mechanisms and importance of genetic variation in populations and evolution.
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Genetic Variation Worksheet
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is NOT a primary source of genetic variation?
Mutation
Gene flow
Mitosis
Sexual reproduction
2. The process where homologous chromosomes exchange genetic material during meiosis is called:
Independent assortment
Crossing over
Nondisjunction
Replication
3. A permanent change in the DNA sequence is called a .
4. is the movement of genes between populations, contributing to genetic variation.
5. Explain two reasons why genetic variation is important for the survival of a species.
6. All mutations are harmful to an organism.
True
False
7. Genetic recombination only occurs during mitosis.
True
False
8. Observe the diagram of DNA below. Briefly describe how changes in this structure can lead to genetic variation.
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