Tamil Nadu Board Class 12 Zoology — Important Questions 2026
Most important questions for Tamil Nadu Board Class 12 Zoology board exam 2026. Chapter-wise questions with marking scheme and expected topics.
Quick Summary
This page covers the most important questions for Tamil Nadu Board Class 12 Zoology board exam 2026, based on previous year question papers and expected topics. Focus on these for maximum marks.
How to Use Important Questions
- Start with high-weightage chapters — focus on chapters that carry the most marks in the exam.
- Practice writing answers — don't just read; write out answers within the time limit to build speed.
- Cross-reference with syllabus — ensure every chapter is covered by checking the syllabus page.
- Revise with notes — after practising, use revision notes for quick recap before the exam.
Chapter-Wise Important Questions — 10 Chapters
Focus on high-weightage chapters first. Each chapter below lists the types of questions frequently asked in Tamil Nadu Board board exams.
Reproduction in Organisms
44 questionsWhich of the following organisms shows exogenous budding?
Gemmules are internal buds used for asexual reproduction. They are found in:
Regeneration was first studied in Hydra by which scientist?
The type of regeneration where the whole body grows from a small fragment is called:
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Human Reproduction
45 questionsThe LH surge on approximately the 14th day of the menstrual cycle triggers which of the following events?
Which structure is formed from the remnant of the Graafian follicle after ovulation and acts as a temporary endocrine gland?
Fertilization in humans normally occurs in which part of the female reproductive tract?
The blastocyst is composed of a single layer of flattened cells called trophoblast and a cluster of rounded cells. What is the cluster of rounded cells called?
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Reproductive Health
45 questionsIn the ART procedure called ZIFT, up to what blastomere stage is the zygote transferred, and where is it transferred?
Lactational amenorrhoea serves as a natural birth control method. What is the hormonal mechanism behind it?
Which of the following correctly pairs a sexually transmitted disease with its causative organism?
The PCPNDT Act (1994) was enacted by the Government of India primarily to:
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Get chapter-wise important questions with practice tests for all 10 chapters
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Where can I find Tamil Nadu Board Class 12 Zoology Important Questions?
This page provides important questions for Tamil Nadu Board Class 12 Zoology for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.
Is Tamil Nadu Board Class 12 Zoology easy to score in?
Zoology is one of the scoring subjects in Tamil Nadu Board Class 12 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.
How to prepare for Tamil Nadu Board Class 12 Zoology board exam?
Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.
How many questions come from each chapter in Tamil Nadu Board Class 12 Zoology?
The question paper distribution varies each year, but certain chapters consistently carry more marks. Check the marks distribution section above for chapter-wise weightage based on previous year patterns.
Browse Important Questions by Chapter
10 chapters available
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Tamil Nadu Board Class 12
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