Genetic Variation Worksheet
Explore the fundamental concepts of genetic variation, including its sources, mechanisms, and importance in evolution for grade 9 science students.
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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
Genetic drift
Gene flow
Sexual reproduction
2. What is the ultimate source of all new genetic variation?
Recombination
Mutation
Independent assortment
Crossing over
3. Genetic variation refers to the in DNA sequences among individuals within a population.
4. is the process by which genetic material is exchanged between homologous chromosomes during meiosis.
5. All mutations are harmful to an organism.
True
False
6. Genetic variation is essential for a population to adapt to changing environments.
True
False
7. Explain how independent assortment during meiosis contributes to genetic variation.
8. Describe the role of gene flow in increasing genetic variation within a population.
Below is a diagram of DNA. Identify the key components labeled.
A:
B:
C: