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 function of hemoglobin in the blood?

View Question

What is the most common state of matter in the universe?

View Question

What is the main component of the human skeleton?

View Question

Which planet has the strongest gravitational force?

View Question

Which organ in the human body produces bile?

View Question

What is the unit of electric current?

View Question

What is the atomic number of hydrogen?

View Question

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

View Question

Which gas is known as "laughing gas"?

View Question

Which gas is used in fire extinguishers?

View Question