Class 12 Botany TM (2026-2027) Study Guide - Dr. T.Prabu M.Sc., M.Ed.,Ph.D., P.G Asst in Botany, Melsevalambadi -Villupuram Dist. - 9943437766
🔘 Class : Plus Two / 12th
🔘 Department : DSE
🔘 Subject : Class 12 Botany
🔘 Version : TAMIL MEDIUM
🔘 File Type : PDF
🔘 Total Pages : 126
🔘 Year : 2026-2027
🔘 Author : Dr. T.Prabu
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Description :
This 12th-grade Botany study guide for the 2026-2027 academic year, authored by Dr. T. Prabu, provides a comprehensive overview of key biological and ecological concepts through structured lessons, questions, and diagrams.
Core Lessons and Topics
- Plant Reproduction: Covers both sexual and asexual reproduction, detailing vegetative propagation methods like grafting and layering. It explains the development of male and female gametophytes and the process of double fertilization in angiosperms.
- Genetics: Explains Mendelian genetics, including monohybrid and dihybrid crosses, as well as non-Mendelian inheritance like incomplete dominance and cytoplasmic inheritance. It also covers chromosomal inheritance and various types of mutations.
- Biotechnology: Discusses modern techniques such as recombinant DNA technology, the use of restriction enzymes, and gene transfer methods. It includes practical applications like the production of Bt cotton and "Golden Rice."
- Plant Tissue Culture: Details the principles of cell totipotency and techniques for growing plants from cells or tissues in a controlled environment, including micropropagation and cryopreservation.
- Ecology and Environmental Issues: Explores ecological principles, ecosystem services, and energy flow. It addresses critical environmental challenges such as global warming, ozone depletion, and the impact of invasive species.
- Crop Improvement and Applied Botany: Reviews traditional and modern plant breeding methods and the role of biofertilizers. It also highlights the economic importance of various plants used in medicine, food, and industry.
Educational Structure
- Question Formats: Each chapter includes multiple-choice questions followed by detailed answers for 2, 3, and 5-mark questions to aid in exam preparation.
- Visual Aids: The guide concludes with a collection of essential botanical diagrams, including seed structures, life cycles, and laboratory setups like bioreactors.
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