Most important 20 question class 12th CBSE biology

Here are 20 important questions for Class 12th CBSE Biology:

1. What is genetics?
2. How does genetic variation occur?
3. What are the differences between mitosis and meiosis?
4. What is DNA replication and why is it important?
5. What is protein synthesis and how does it occur?
6. What is the importance of the endocrine system?
7. What are the different types of plant tissues?
8. What is photosynthesis and how does it occur?
9. What are the different types of animal tissues?
10. What is the significance of biodiversity?
11. What are the causes and effects of air pollution?
12. What is the water cycle and why is it important?
13. What are the different types of ecological interactions?
14. What are the characteristics of a species and how are they determined?
15. What are the different types of evolution?
16. What is the role of genetics in evolution?
17. What is the significance of the human reproductive system?
18. What is the difference between homeostasis and metabolism?
19. What is the importance of the respiratory system?
20. What are the different types of food webs and food chains?

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