CUET PREP | APRIL 2026
CUET UG 2027 — SUBJECT GUIDE & PREPARATION STRATEGY
• Domain Subject: Biology (Code: 302) — Section II of CUET UG
• Universities accepting Biology: Delhi University, BHU, Jamia Millia Islamia, Hyderabad University, Aligarh Muslim University and 200+ CUET-participating universities
• Mandatory for: B.Sc Biology, B.Sc Zoology, B.Sc Botany, B.Sc Biochemistry, B.Sc Biotechnology, B.Sc Life Sciences, BA Life Sciences
Last Updated: April 2026
CUET Biology 2027 is the primary domain subject for science stream students applying to life science programmes across 200+ CUET-participating universities. Whether you are targeting B.Sc Zoology at Miranda House, B.Sc Botany at Hindu College, B.Sc Biotechnology at Delhi University, or any life sciences programme at BHU, Aligarh, or Hyderabad University, mastering CUET Biology is essential. This comprehensive guide covers the complete CUET Biology syllabus 2027, chapter-wise weightage, important MCQ topics, and practice questions derived from Class 11 and 12 NCERT Biology textbooks. Access our CUET Biology mock tests and full syllabus guide to streamline your preparation.
CUET Biology Syllabus 2027 — Complete Chapter-wise Breakdown
• Number of questions: 50 (attempt any 40)
• Marking scheme: +5 for correct, -1 for incorrect
• Maximum marks: 200
• Duration: 45 minutes
• NCERT Classes: XI & XII Biology textbooks (both volumes)
• Key difference from NEET: CUET Biology tests conceptual understanding; NEET tests application depth
CUET Biology is strictly based on NCERT Class 11 and 12 Biology textbooks. The Class 11 book covers foundational concepts (Cell Biology, Plant Physiology, Human Physiology, Diversity of Life, Structural Organisation), while Class 12 covers advanced topics (Reproduction, Genetics, Biotechnology, Ecology, Evolution). Both are equally important for CUET 2027.
Class 11 Biology — Chapter-wise Topics and Weightage
| Unit | Key Chapters | Important Topics | Approx. CUET Weight |
|---|---|---|---|
| Unit 1: Diversity | Ch 1–4 (Kingdoms, Classification) | Five kingdom classification, Binomial nomenclature, Viruses, Bacteria, Fungi | 3–4 Q |
| Unit 2: Plant Structure | Ch 5–7 (Morphology, Anatomy) | Root, stem, leaf modifications; Tissue types; Primary and secondary growth | 2–3 Q |
| Unit 3: Animal Structure | Ch 8–9 (Earthworm, Cockroach, Frog) | Digestive, Circulatory, Nervous systems; Animal tissues | 2–3 Q |
| Unit 4: Cell Biology | Ch 10–12 (Cell, Biomolecules, Cell Cycle) | Cell organelles, DNA structure, Mitosis, Meiosis, Cell cycle phases | 4–5 Q |
| Unit 5: Plant Physiology | Ch 13–17 (Transport, Respiration, Photosynthesis) | Photosynthesis (C3, C4, CAM), Respiration, Transpiration, Plant hormones | 4–5 Q |
| Unit 6: Human Physiology | Ch 18–22 (Digestion, Breathing, etc.) | Digestive enzymes, Breathing mechanism, Blood groups, Neural coordination, Endocrine glands | 5–6 Q |
Class 12 Biology — Chapter-wise Topics and Weightage
– Unit 1 Reproduction (Ch 1–4): ~4–5 questions — Pollination, Fertilisation, Human reproduction, Reproductive health
– Unit 2 Genetics & Evolution (Ch 5–7): ~5–6 questions — Mendel’s laws, DNA replication, Molecular basis of inheritance, Evolution
– Unit 3 Biology & Human Welfare (Ch 8–10): ~3–4 questions — Microbes in human welfare, Biotechnology applications
– Unit 4 Biotechnology (Ch 11–12): ~3–4 questions — Recombinant DNA, Gene cloning, GMOs, Bt crops
– Unit 5 Ecology (Ch 13–16): ~4–5 questions — Ecosystems, Biodiversity, Environmental issues, Population ecology
Important MCQ Topics for CUET Biology 2027
Based on past CUET Biology question patterns, these topics generate the most MCQs and are consistently tested across multiple shifts:
- Cell organelles and their functions — Mitochondria, Chloroplast, ER, Ribosome, Golgi, Lysosome
- DNA structure and replication — Watson-Crick model, Meselson-Stahl experiment, semi-conservative replication
- Photosynthesis — Light reactions, Calvin cycle, C3 vs C4 plants, Chlorophyll absorption
- Human physiology — Digestive enzymes and their substrates, Blood composition, ABO blood groups, Rh factor
- Genetics — Monohybrid/Dihybrid crosses, Codominance, Incomplete dominance, Sex-linked disorders
- Ecology — Food chains and food webs, Energy flow, Ecological pyramids, Biodiversity hotspots in India
- Biotechnology — Restriction enzymes, Gel electrophoresis, PCR, ELISA, Bt cotton, Golden rice
- Evolution — Darwin’s theory, Natural selection, Hardy-Weinberg equilibrium, Miller-Urey experiment
- Reproduction in flowering plants — Pollination types, Double fertilisation, Endosperm, Embryo sac
- Human reproductive system — Gametogenesis, Menstrual cycle, Fertilisation, Placenta functions
P — Prophase: chromosomes condense, spindle forms
M — Metaphase: chromosomes align at cell equator
A — Anaphase: chromosomes separate to poles
T — Telophase: nuclear membrane reforms, cytoplasm divides
Remember: “Please Make A Telephone call” = P-M-A-T
For Meiosis, remember: Meiosis = 2 divisions; Meiosis I reduces chromosome number
CUET Biology Preparation Strategy 2027
CUET Biology is entirely NCERT-based, which is actually an advantage — you don’t need multiple reference books. Here is a proven 8-week preparation plan:
Weeks 1–3: Complete NCERT Reading
Read all 22 chapters (Class 11) and 16 chapters (Class 12) from NCERT Biology textbooks. Pay attention to diagrams, tables, and boxed information. Make short notes for each chapter highlighting key definitions, processes, and examples. Diagrams from NCERT (cell organelles, flower parts, DNA structure) often appear directly in CUET.
Weeks 4–6: Chapter-wise MCQ Practice
After completing each chapter, solve 20–30 MCQs immediately. Use NCERT Exemplar Problems (available free on NCERT website) for high-quality practice questions. Focus extra time on Cell Biology, Human Physiology, Genetics, and Biotechnology — these 4 units typically contribute 55–60% of CUET Biology marks.
Weeks 7–8: Full Mock Tests and Revision
Take 4–5 full-length CUET Biology mock tests. Use our CUET Biology Mock Tests at CUET Gurukul for realistic exam simulation. After each mock, spend time analysing errors and re-reading relevant NCERT sections. Target 38–42 correct answers out of 40 attempted for a score above 180/200.
• Biology is one of the most predictable CUET domain subjects — almost all questions are directly from NCERT
• Chapter-wise analysis shows Human Physiology + Genetics + Biotechnology = 45–50% of total marks
• Diagram-based questions (cell division, DNA structure, flower parts) are easier to answer if you have studied NCERT diagrams
• Avoid negative marking traps — do NOT guess on topics you have not studied; unattempted questions have no penalty
• Unlike NEET, CUET Biology doesn’t test numerical problems or complex derivations — it’s all conceptual MCQs
• Get expert mentorship at CUET Gurukul coaching for Biology-focused preparation plans
Frequently Asked Questions — CUET Biology 2027
Q: Is CUET Biology the same as NEET Biology?
CUET Biology and NEET Biology are both based on NCERT Class 11 and 12 content, but they differ significantly in depth and question style. NEET Biology tests deeper application, numerical ability in some topics, and clinical reasoning. CUET Biology is strictly conceptual, direct from NCERT text, and generally at a lower difficulty level than NEET. A NEET aspirant preparing Biology will easily crack CUET Biology.
Q: Which Class 12 Biology chapters are most important for CUET?
For CUET 2027, the highest-weightage Class 12 chapters are: Molecular Basis of Inheritance (Chapter 6), Human Reproduction (Chapter 3), Evolution (Chapter 7), Biotechnology and Its Applications (Chapter 12), and Ecosystems (Chapter 14). These 5 chapters together typically contribute 12–15 questions in CUET Biology.
Q: Can a student from PCM (Physics-Chemistry-Maths) background appear in CUET Biology?
Yes, CUET does NOT restrict Biology domain to only PCB students. Any Class 12 student can choose Biology as a CUET domain subject regardless of their stream. However, they must cover the NCERT Biology syllabus independently. If Biology was not studied in Class 12, additional preparation time of 10–12 weeks is recommended.
Q: Which universities offer B.Sc Biotechnology through CUET and what scores are required?
Major universities offering B.Sc Biotechnology through CUET include Delhi University (Deshbandhu College, Acharya Narendra Dev College), BHU, Jamia Millia Islamia, Hyderabad University, and Jadavpur University. Expected CUET Biology scores for competitive admissions range from 175–190/200 depending on the institution and category.
Source: CUET Gurukul Research Team — April 2026
Practice Quiz — Test Your CUET Biology Preparation
Practice Quiz — 10 CUET-Style Questions
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