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Tamil Nadu HSC Biology

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Tamil Nadu HSC Biology

TNBSE board practice — Class 12 Biology

20-question mock20 min35% pass markIndia

Single questions with instant feedback — no timer, learn as you go.

Exam blueprint

What this exam covers

10 topics · drawn across your practice and mock
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
Your study path
Master this exam, topic by topic
Drill one topic at a time. After each session you'll see where you went wrong and can retake until you've got it.
Questions per session
View full mastery board →
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 core Tamil Nadu HSC Biology practice on AceMark is free to start — no credit card needed. Sign in (takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the Mentor. 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.