Hi Rashi Mishra,

The syllabus for the session 2020-21 for class 12 is as follows:

Chapter

1. Reproduction in organisms
2. Sexual Reproduction in Flowering Plants
3. Human Reproduction
4. Reproductive Health
5. Principles of Inheritance And Variation
6. Molecular Basis of Inheritance
7. Evolution
8. Human Health and Disease
9. Strategies for Enhancement in Food Production
10. Microbes in Human Welfare
11. Biotechnology: Principles and Processes
12. Biotechnology and its Applications
13. Organisms And Population
14. Ecosystem
15. Biodiversity and Conservation
16. Environmental Issues

For more information please check the link: https://www.google.com/amp/s/school.careers360.com/articles/cbse-class-12-biology-syllabus/amp

Thanks