CUET UG Biology 2025 Previous Year Question Papers - Download PDFs for Practice

CUET UG Biology Previous Year Question Papers (PYQs)

For students aiming for top universities like University of Delhi, Banaras Hindu University, or Jamia Millia Islamia, the Common University Entrance Test (CUET UG) Biology paper is crucial for admission into courses like Life Sciences, Biotechnology, Microbiology, and related fields.

The syllabus is primarily based on Class 12 NCERT Biology, and the exam follows an MCQ-based format, focusing more on conceptual clarity, diagrams, and factual understanding rather than calculations.

Why Solve CUET Biology PYQs?

Solving Previous Year Question Papers (PYQs) helps candidates to:

• Understand Question Trends: Learn how NCERT theory is converted into MCQs, especially statement-based and assertion-reason questions.

• Identify “NTA-Favorite” Topics: Frequently asked areas include Genetics, Biotechnology, and Ecology.

• Improve Speed & Accuracy: Practice solving 50 questions in 60 minutes efficiently.

• Master NCERT Lines & Diagrams: Many questions are directly picked from NCERT statements, tables, and diagrams.

• Boost Confidence: Familiarity with actual exam-level questions reduces exam stress.

CUET Biology Exam Pattern & Marking

Based on guidelines of the National Testing Agency, the exam pattern is:

• Total Questions: 50

• Questions to be Attempted:50

• Total Marks: 250

• Marking Scheme: +5 for correct answer, −1 for incorrect answer

• Duration: 60 minutes

• Question Type: MCQs (conceptual, diagram-based, assertion–reason, statement-based)

Strategic Weightage: Where to Focus?

Analysis of recent PYQs shows that some Biology units are asked more frequently:

1. Genetics and Evolution (~12–14 Questions)

This is the most important unit. PYQs often cover:

• Mendelian inheritance and laws

• DNA replication and gene expression

• Human genome project

• Evolution theories and evidence

Focus on concept clarity + diagrams + processes

2. Biotechnology (~8–10 Questions)

A highly scoring and application-based section:

• Recombinant DNA technology

• PCR, cloning vectors

• Applications in medicine and agriculture

• GMOs and ethical issues

Many questions are directly NCERT-based

3. Ecology and Environment (~8–10 Questions)

Mostly theory and fact-based:

• Ecosystems and energy flow

• Biodiversity and conservation

• Environmental issues

Easy to score with proper revision

4. Biology and Human Welfare (~6–8 Questions)

Includes real-life applications:

• Human health and diseases

• Immunity and vaccines

• Microbes in human welfare

5. Reproduction (~4–6 Questions)

Moderate weightage:

• Human reproduction

• Reproductive health

• Flowering plant reproduction

Subject-Wise Strategy for Biology PYQs

Different Biology units require different approaches:

• Conceptual Units (Genetics, Biotechnology): Focus on processes, flowcharts, and mechanisms

• Theory-Based Units (Ecology, Human Welfare): Revise NCERT lines and facts

• Diagram-Based Topics: Practice labeling and understanding diagrams thoroughly

How to Use CUET Biology PYQs Effectively

1. The “50-Question Smart Attempt”

Since you only need to attempt 50 questions:

• First attempt easy and direct NCERT-based questions

• Skip tricky ones and return later

2. NCERT Line Mastery

• Many PYQs are directly lifted or slightly modified from NCERT lines

• Highlight and revise important statements

3. Use Elimination Technique

• Eliminate clearly wrong options

• This increases accuracy in tricky MCQs

4. Maintain an Error Notebook

• Note down wrong concepts, confusing facts, and tricky questions

• Revise it regularly before the exam

Unique Tips for CUET Biology PYQs

• Statement-Based Questions Dominate: Be ready for questions like “Which statement is correct/incorrect?”

• Diagram Questions Are Frequent: Practice diagrams like DNA structure, flower parts, ecosystem models

• Assertion–Reason Questions: Focus on understanding relationships between statements

• NCERT Examples Matter: Even small boxes, tables, and examples can be turned into MCQs

• Less Calculation, More Concept: Unlike Mathematics, Biology focuses more on clarity and memory + application