CBSE · Class 12
CBSE Class 12 Biology: Chapter Tests (40 marks each)
- 13 tests
- 1 subject
- 13 hrs of practice
- CBSE
One 40-mark chapter test for each chapter of CBSE Class 12 Biology, with question papers, answer keys and step-by-step marking.
What you get
Understand every mark
Question-by-question evaluation explains where you earned marks, where you lost them, and what to improve.
Practise like it’s exam day
Write your answers on paper under a timer. Photograph your sheets and upload them when you finish.
Give your next revision a direction
Get results in about 5 minutes, with feedback to help you decide what to work on before your next attempt.
In this series
Open a paper to see what it covers.
CBSE 12 Biology: Sexual Reproduction in Flowering Plants (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Human Reproduction (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Reproductive Health (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Principles of Inheritance and Variation (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Molecular Basis of Inheritance (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Evolution (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Human Health and Disease (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Microbes in Human Welfare (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Biotechnology: Principles and Processes (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Biotechnology and its Applications (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Organisms and Populations (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Ecosystem (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
CBSE 12 Biology: Biodiversity and Conservation (40)Class 12CBSE60 min40 marksBiology
Write this paper by hand, upload your answers and review your question-by-question feedback.
Paper format
- 11 Multiple Choice Questions (MCQs)
- 3 Very Short Answer Questions (2 marks)
- 3 Short Answer Questions (3 marks)
- 4 Long Answer Questions (4-5 marks)
13 tests
Free
Everything students ask us first
Still unsure about something? Write to us at hello@blanksage.com and a person will answer.
A pen, your own answer sheets and a phone camera. Photograph the pages when you finish and upload them, the same way you would send a photo to anyone else.
Three hours for a full paper, the same as the real thing. Uploading takes about a minute, and the marks come back around five minutes later.
Crossed-out lines, margin arithmetic and cramped spacing are all read. The evaluation engine is trained to read messy real student handwriting, equations, and sketches as they are.
Then there is more to tell you, not less. The point is to find the exact marks you are losing and why, while there is still time before board exams to do something about them.
The launch offer is open now: new students choose two bundles free after onboarding. Every three completed tests and their short feedback unlocks another bundle choice. For a limited period, unlock any bundle for free.
CBSE and ICSE / ISC, Class 10 and Class 12, across all 10+ major subjects including Mathematics, Physics, Chemistry, Biology, Economics, History, Geography, and Languages.
No, and that is the point. Write on paper exactly like you would in the real exam, then photograph or scan the sheets and upload them. Rough work, crossings-out and margin arithmetic are all read.
Your sheets are read directly from the scan and marked against the official answer key, question by question. It runs as soon as you upload, so there is no queue and no waiting for a batch to be corrected.
Your score, a short summary of how the paper went, and a remark on every single question explaining where the mark was gained or lost, plus chapter mastery tracking.
The pattern is. Every paper is drafted, reviewed and moderated by teachers with 20+ years of board experience, and built to the current blueprint, so the sections, weightage and duration match the paper you will sit.