What’s in the 2027 CBSE Class 12 Board Biology predicted question paper?

The Biology paper in the CBSE Class 12 Board is structured for 180 minutes for 80 marks across 4 sections: Very Short and Short Answer Questions (28 marks), Long Answer Questions (20 marks), Case / Source / Data-Based Questions (12 marks) and Multiple Choice Questions (20 marks). A predicted paper mirrors this exact shape so practising it feels like sitting the real exam. It targets the 2027 sitting.

How many marks is the 2027 Biology paper?

80 marks over 180 minutes. By the blueprint's own weighting, structured / long-answer questions account for 32 of 80 marks (40%), short-answer questions account for 28 of 80 marks (35%) and multiple-choice questions account for 20 of 80 marks (25%).

2027 · India

CBSE Class 12 Board Biology Predicted Question Paper 2027

If you’re preparing for the 2027 CBSE Class 12 Board (India) Biology paper, this predicted question paper gives you a realistic, full-length practice sitting. It follows the 2027 exam’s real structure — 180 minutes for 80 marks across 4 sections — and covers the current syllabus, so you can rehearse timing, question types and topic spread before the real thing.

Generate the 2027 predicted paper See a sample first

Exam intelligence dashboard

= model estimate

Blueprint match90%Strong structure match
Total marks80marks
Duration180 min~4.7 min/question
Questions modelled384 sections
Syllabus topics10analysed
Est. topic coverage10/10~98% per topic
Objective share25%20 marks
Prediction for2027Board / public exam
Built withGoogle AIintel-1.0

Figures marked ● are model estimates derived from the exam’s published blueprint and syllabus — not measured historical frequencies. How this is built.

2027 paper blueprint

Section	Type	Questions	Marks
Very Short and Short Answer Questions	Short-answer questions	11 · 2-3 each	28
Long Answer Questions	Structured / long-answer questions	4 · 5 each	20
Case / Source / Data-Based Questions	Structured / long-answer questions	3 · 4 each	12
Multiple Choice Questions	Multiple-choice questions	20 · 1 each	20
Total · 180 min			80

Paper analytics

The real weighting of the CBSE Class 12 Board Biology paper, straight from its published blueprint.

Marks by question type

Structured / long-answer questions32 marks · 40%
Short-answer questions28 marks · 35%
Multiple-choice questions20 marks · 25%

At a glance

Total: 80 marks
Duration: 180 min
Sections: 4
Questions set: 38
You answer: 38
Per question: ~4.7 min

Topic priority

Model estimate

A study-prioritisation model over the 10 syllabus topics, built from the paper’s structure, the syllabus order (foundations first) and the exam type (Board / public exam). Under an even-spread model a single paper reaches about 10 of 10 topics (~98% each), so prioritising pays off. These are study estimates, not a record of past questions.

Top priority

4 topics

Sexual reproduction in flowering plantsCore
Foundational syllabus topic — study this first; later chapters build on it.
~10 marks focus
Human reproduction and reproductive healthCore
Foundational syllabus topic — study this first; later chapters build on it.
~10 marks focus
Principles of inheritance and variationCore
Foundational syllabus topic — study this first; later chapters build on it.
~9 marks focus
Molecular basis of inheritanceCore
Foundational syllabus topic — study this first; later chapters build on it.
~9 marks focus

High priority

3 topics

EvolutionCore
Core syllabus area — high study priority.
~8 marks focus
Human health and diseaseCore
Core syllabus area — high study priority.
~8 marks focus
Microbes in human welfareCore
Core syllabus area — high study priority.
~7 marks focus

Medium priority

3 topics

Biotechnology: principles and applicationsStandard
Standard syllabus topic — cover after the core areas.
~7 marks focus
Organisms and populationsStandard
Standard syllabus topic — cover after the core areas.
~6 marks focus
Ecosystem and biodiversityStandard
Standard syllabus topic — cover after the core areas.
~6 marks focus

Structure & coverage signals

How this paper is built and how widely it samples the syllabus — present-tense structure, not year-over-year trends (we don’t mine past papers).

Mixed objective + written
Objective questions are 25% of the marks; the rest is written work. Balance MCQ speed with written depth.
Written section first
The written questions come before the objective part — pace the long answers so you leave time for the MCQs.
Varied question types
The paper mixes 3 question formats — rehearse each style, not just one.
Broad coverage
The paper is long enough to reach roughly 10 of the 10 topics, so few areas are safe to skip — aim for wide, even preparation.

Why these predictions — the evidence

Each point below is grounded in the exam’s real blueprint or syllabus. We explain the reasoning rather than claiming any question is guaranteed.

Objective (MCQ) questions carry 20 of 80 marks — 25% of the paper.
Source · Exam paper blueprint
Written questions account for 60 marks (75%), so timed long-answer practice matters.
Source · Exam paper blueprint
The Biology syllabus lists 10 core topics, and the paper draws across them in line with how it is weighted.
Source · Official syllabus topic list
At 180 minutes for 38 answered questions, that is about 4.7 minutes per question — rehearse to that pace.
Source · Exam paper blueprint
Calibrated as a board / public exam: full-syllabus scope, weighting the perennial high-yield chapters.
Source · CBSE Class 12 Board exam format

Generate the 2027 Biology predicted paper

A full CBSE Class 12 Board Biology paper matched to the real 2027 blueprint — practise online or print.

Generate the 2027 Biology predicted paper

Your AI study plan

Model estimate

A suggested strategy built from the blueprint weighting and syllabus order — adapt it to your own strengths.

Priority chapters

1.Sexual reproduction in flowering plants
2.Human reproduction and reproductive health
3.Principles of inheritance and variation
4.Molecular basis of inheritance
5.Evolution
6.Human health and disease
7.Microbes in human welfare

Suggested time & order

Plan roughly 28 hours across the syllabus.

Practice in this order

1.Multiple Choice Questions — 20 marks
2.Very Short and Short Answer Questions — 28 marks
3.Long Answer Questions — 20 marks
4.Case / Source / Data-Based Questions — 12 marks

Last-minute revision checklist

Nail the Very Short and Short Answer Questions section — it is worth the most (28 marks).
Re-read your notes on the foundational topics: Sexual reproduction in flowering plants, Human reproduction and reproductive health, Principles of inheritance and variation, Molecular basis of inheritance.
Do a timed MCQ set — objective marks (20 marks) are the quickest to secure.
Practise to ~4.7 min/question so timing feels automatic.

Turn this into practice

Go beyond the analysis — generate real, exam-style material with MCQForge.

How this prediction is generated

Each predicted paper is assembled from two real inputs: the exam’s published paper structure — its sections, marks, question types and timing — and the official syllabus topic list. Questions are written slot-by-slot to match that blueprint and to read in the exam’s own style, then checked so every multiple-choice item is well-formed and the marks add up. This is structured, exam-style revision material — not a forecast of the exact questions, and it never uses leaked or copyrighted past papers. The analysis on this page — topic priority, coverage estimates and the study plan — is a deterministic model derived from that published blueprint, the official syllabus topic list, and the exam's own format. It is a study-planning aid, not a record of past papers: we do not mine or reproduce previous exams, and we make no claim about which exact questions will appear.

Frequently asked questions

What’s in the 2027 CBSE Class 12 Board Biology predicted question paper?: The Biology paper in the CBSE Class 12 Board is structured for 180 minutes for 80 marks across 4 sections: Very Short and Short Answer Questions (28 marks), Long Answer Questions (20 marks), Case / Source / Data-Based Questions (12 marks) and Multiple Choice Questions (20 marks). A predicted paper mirrors this exact shape so practising it feels like sitting the real exam. It targets the 2027 sitting.
Is this the real 2027 CBSE Class 12 Board Biology paper?: No. MCQForge is an independent study tool. Predicted CBSE Class 12 Board papers are original practice material — they are not affiliated with, endorsed by, or sourced from the examining authority, do not reproduce real or leaked questions, and make no guarantee about which questions will appear in any sitting.
How many marks is the 2027 Biology paper?: 80 marks over 180 minutes. By the blueprint's own weighting, structured / long-answer questions account for 32 of 80 marks (40%), short-answer questions account for 28 of 80 marks (35%) and multiple-choice questions account for 20 of 80 marks (25%).
How do I generate a 2027 Biology predicted paper?: Choose your exam type (for example a mock, pre-board or the board sitting), then generate a full predicted paper you can practise or print. Each predicted paper is assembled from two real inputs: the exam’s published paper structure — its sections, marks, question types and timing — and the official syllabus topic list. Questions are written slot-by-slot to match that blueprint and to read in the exam’s own style, then checked so every multiple-choice item is well-formed and the marks add up. This is structured, exam-style revision material — not a forecast of the exact questions, and it never uses leaked or copyrighted past papers.

MCQForge is an independent study tool. Predicted CBSE Class 12 Board papers are original practice material — they are not affiliated with, endorsed by, or sourced from the examining authority, do not reproduce real or leaked questions, and make no guarantee about which questions will appear in any sitting.