Important Topics of Biology Class 12 CBSE
Last Updated : 21 Apr, 2025
The Important Topics in Biology Class 12 to Score 90% and Above: The Biology Class 12 Board Exam is scheduled for 19th March 2024. The Class 12 Board is an important milestone in the academic journey of the students. As students prepare for their board exams, there are some important topics that cannot be missed. These topics are the key to scoring 90% and above in the CBSE Class 12 Biology exam. After a detailed analysis, we are providing a list of important topics of biology class 12 that will help you score 90% and above in Class 12 Boards.
Important Topics in Biology Class 12
The most important topics in biology for Class 12 are given below:
Important Topics | What to Cover |
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Sexual Reproduction in Flowering Plants | Cover stages of the life cycle, pollination, and process of fertilization in plants |
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Human Reproduction | Focus on topics like gametogenesis, menstrual cycle, fertilization, and pregnancy. Remember to thoroughly prepare the diagrams. |
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Mendel's Law of Inheritance | Cover important genetics topics like dominant and recessive traits and how they are inherited, linkage, recombination, and mutation. |
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Molecular Basis of Inheritance | Concentrate on learning DNA structure and processes like translation, and transcription and experiments of Griffith, Hershey & Chase and Meselson & Stahl. |
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Origin of Life and Evolution | Go through homologous and analogous organs, adaptive radiation, Hardy-Weinberg principle, natural selection and genetic drift. |
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Biotechnology and its Applications: | Learn genetic engineering techniques like recombinant DNA technology and PCR, concepts of biotechnological tools such as DNA sequencing and gene therapy and their application. |
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Human Health and Diseases | Learn about infectious and non-communicable diseases, their symptoms, and preventive measures of common diseases, along with the principles of immunology and vaccination. |
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Ecosystem | Focus on the ecosystem and its components, energy flow, nutrient cycles, and ecological succession, along with environmental issues such as pollution, conservation of forest and wildlife, and sustainability. |
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Microbes in Human Welfare | Cover uses of microbes in various fields, biofertilisers, biogas production, and microbes in sewage treatment |
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Biodiversity and Conservation | Concentrate on covering significance of biodiversity and conservation efforts, threats to biodiversity, and conservation strategies. |
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Study Tips To Score Good Marks in Class 12 Biology
If you want to score 90% and above in CBSE Cass 12 biology then keep these tips in mind -
1. Effective Time Management: Allocate specific time slot for studying biology each day. Break down topics into manageable chunks and create a study schedule. Prioritize difficult topics and give more time to them. Remember to practice labeled diagrams as well.
2. Understand Concepts: Focus on understanding the fundamental concepts rather than rote memorization. Use diagrams, charts, and mnemonics to remember the complex processes and cycles in biology.
3. Practice Regularly: Solve previous years' question papers and sample papers to familiarize yourself with the exam pattern. This will help you get an idea of the types of questions asked in the Class 12 board exam. Practice writing a answers within the allocated time to improve speed and accuracy.
4. Use Additional Resources: Supplement NCERT with reference books and online resources to get better understanding of the concepts and complex topics. Consult multiple sources to clarify doubts.
5. Stay Updated: Keep up with the latest exam patterns and trends that is being followed by CBSE for Class 12 Biology.
6. Stay Healthy and Relaxed: Take regular breaks during study sessions to prevent burnout and to maintain focus. Get proper sleep, exercise regularly, and eat a balanced diet to keep your mind and body healthy. Manage stress through relaxation techniques like deep breathing and meditation to stay calm and focused during exams.
CBSE Previous Year Question Papers
Learn from CBSE Previous Year Question Papers to boost your understanding and excel in your studies.
Conclusion: CBSE Important Topics in Biology Class 12
As the CBSE Class 12th Biology board exam gets closer, it is important to study smartly. For the students who want to score 90% and above, there are some important topics in biology class 12 they should cover. These topics are important for the CBSE Class 12 biology board exam 2024. Understanding these biology important topics class 12 thoroughly and practicing regularly will help you succeed in the exam.
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