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

What is the chemical name of table salt?

View Question

What is the smallest unit of life?

View Question

What is the pH of pure water at 25°C?

View Question

Which organelle is responsible for photosynthesis in plants?

View Question

Which metal is liquid at room temperature?

View Question

What is the main purpose of stomata in plants?

View Question

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

View Question

Which planet is known as the "Red Planet"?

View Question

Which acid is found in the human stomach?

View Question

Which disease is caused by the deficiency of vitamin C?

View Question