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Academic

Tamil Nadu HSC Biology

TNBSE board practice — Class 12 Biology

75 min20 questions35% pass markIndia
Exam blueprint

What this exam covers

10 topics · 20 questions in the bank
Topic weights below mirror the real exam blueprint. To practise any single topic, use the Your study path panel on the right.
01Reproduction in Organisms
10%2 questions
02Principles of Inheritance
10%2 questions
03Molecular Genetics
10%2 questions
04Evolution
10%2 questions
05Human Health and Diseases
10%2 questions
06Biotechnology
10%2 questions
07Plant Physiology
10%2 questions
08Human Physiology
10%2 questions
09Ecology and Environment
10%2 questions
10Cell and Molecular Biology
10%2 questions
How to prepare

How to prepare for Tamil Nadu HSC Biology

01
Plan your study time
Budget roughly 2–3 months alongside school for Tamil Nadu HSC Biology. Block fixed daily sessions rather than occasional long ones — spaced, consistent practice retains far better than cramming.
02
Start with the official material
Work from the official syllabus or study guide first so you know exactly what is in scope and how each area is weighted. The "Official source" block below links to the exam authority.
03
Build a practice cadence
Drill your weakest topics two to three times a week using focused practice, then sit one full, timed mock each week. Review every wrong answer immediately and write down the rule or concept you missed.
04
Watch the common pitfalls
Studying passively by re-reading instead of solving previous-year papers, and neglecting presentation/answer-structure that the marking scheme rewards.
05
The final 7 days
Stop learning new material and switch to consolidation: full timed mocks, a one-page sheet of high-frequency facts you keep slipping on, and a calm sleep schedule. Aim to be comfortably above the pass mark on mocks before test day.
06
Exam-day logistics
Reach the exam hall well before reporting time with your admit card and a transparent pouch of permitted stationery. Read the full paper in the reading time, attempt the questions you are surest of first, and keep a strict per-section time budget.
Official source
Tamil Nadu DGE
The Tamil Nadu Directorate of Government Examinations conducts the SSLC and HSC exams.
AceMark is an independent practice tool, not affiliated with the exam authority. Always confirm the current syllabus, fees and dates on the official site.
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Frequently asked questions

Is the Tamil Nadu HSC Biology practice test free?

Yes. The Tamil Nadu HSC Biology practice test on AceMark is completely free — no paywall, no credit card, no premium tier. Sign in (free, takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the AI study coach. Otherwise, browse and explore questions without an account.

How many questions are in the Tamil Nadu HSC Biology quiz?

Each Tamil Nadu HSC Biology attempt draws 20 questions and runs for about 75 minutes under realistic timed conditions.

Can I retake the Tamil Nadu HSC Biology test, and are the questions randomised?

Yes. Every attempt pulls a fresh, randomised set of questions, so you can't memorise your way through — you retake it until you genuinely know the material.

What score do I need to pass the Tamil Nadu HSC Biology?

The pass mark used in this simulation is 35%. AceMark scores every attempt instantly and shows which topics to review.