Topic Details (Notes format)

Evolution and Genetic Variation

Subject: General Science

Book: NCERT Biology Class 12

Study of biological changes over generations.
- **Natural Selection and Speciation**:
- Darwin’s theory.
- **Genetic Drift and Mutations**:
- Role in evolution.
- **Human Evolution**:
- Fossil evidence and DNA studies.

**Possible Exam Questions:**
1. What is Darwin’s theory of natural selection?
2. How do mutations contribute to genetic variation?
3. Describe the significance of genetic drift in evolution.
4. What are the evidences supporting human evolution?
5. Explain how speciation occurs over time.

Practice Questions

Which process converts glucose into energy in the human body?

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What is the term for water changing from liquid to gas?

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Which planet is known as the "Red Planet"?

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What is the chemical formula for carbon dioxide?

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Which organ is responsible for filtering blood in the human body?

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Which planet has the strongest gravitational force?

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Which organ is responsible for detoxifying harmful substances in the human body?

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What is the unit of electrical resistance?

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Which is the smallest bone in the human body?

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Which part of the cell contains the genetic material?

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