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 chemical formula of water?

View Question

Which gas is commonly used in balloons to make them float?

View Question

What is the function of platelets in the human body?

View Question

What is the largest organ in the human body?

View Question

Which component of blood carries oxygen?

View Question

Which type of bond is present in sodium chloride?

View Question

What is the primary source of energy for life on Earth?

View Question

Which disease is caused by the deficiency of vitamin C?

View Question

What type of electromagnetic radiation has the longest wavelength?

View Question