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 pH of pure water at 25°C?

View Question

What is the function of hemoglobin in the blood?

View Question

Which part of the cell contains the genetic material?

View Question

Which part of the cell is responsible for energy production?

View Question

What is the largest organ in the human body?

View Question

Which organ stores and releases glucose in the human body?

View Question

Which organ in the human body produces bile?

View Question

Which acid is found in the human stomach?

View Question

What type of electromagnetic radiation has the longest wavelength?

View Question

Which type of radiation has the shortest wavelength?

View Question