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 planet is known as the "Red Planet"?

View Question

Which acid is found in the human stomach?

View Question

Which metal is liquid at room temperature?

View Question

Which is the largest planet in the Solar System?

View Question

What is the main component of the human skeleton?

View Question

What is the main purpose of stomata in plants?

View Question

What is the chemical symbol for gold?

View Question

What is the boiling point of water at standard atmospheric pressure?

View Question

Which element is the most abundant in the Earth’s crust?

View Question

Which gas is most abundant in Earth’s atmosphere?

View Question