CUET Biology Syllabus 2026 PDF Download, Unit-wise Topics

If you're aiming to pursue an undergraduate degree in Biology or related fields such as Botany, Zoology, or Biotechnology through the Common University Entrance Test (CUET), having a clear understanding of the CUET Biology Syllabus 2026 is the key to effective preparation. CUET UG Biology syllabus is structured around the NCERT Class 12 curriculum, encompassing five major units that span essential topics in Reproduction, Genetics, Human Welfare, Biotechnology, and Ecology. Familiarity with the CUET Biology important topics not only enables targeted revision but also boosts your problem-solving speed and accuracy in the exam. With a well-planned strategy and in-depth knowledge of each unit, you can confidently work towards achieving a top score and securing admission to your desired course.

CUET Biology Syllabus 2026 Unit-Wise Structure

Here is a unit-wise structure of the CUET Biology Syllabus 2026, aligned with the NCERT Class 12 curriculum. Each unit includes major chapters and subtopics you need to focus on for better accuracy and scoring.

Unit I: Reproduction 

Here is a detailed breakdown of Unit I: Reproduction from the CUET Biology Syllabus 2026, based on the NCERT Class 12 Biology curriculum. This unit is crucial and often carries high weightage in the CUET exam.

Unit II: Genetics and Evolution

Here is the breakdown of Unit II: Genetics and Evolution from the CUET Biology Syllabus 2026 based on the NCERT Class 12 curriculum. This unit helps build core understanding of inheritance, molecular biology, and the theory of evolution. The topics are concept-heavy and frequently tested in CUET Biology. 

Unit III: Biology and Human Welfare

 This unit is essential for understanding the cuet application of biology in improving human health and welfare and carries moderate to high weightage in the CUET UG exam.

Unit IV: Biotechnology and Its Applications

Here is the detailed breakdown of Unit IV: Biotechnology and Its Applications from the CUET Biology Syllabus 2026, based on the NCERT Class 12 Biology textbook. This unit is concise yet significant, focusing on modern biotechnological principles and their applications in health, agriculture, and industry.

Unit V: Ecology and Environment

This unit consists of three chapters covering important ecological concepts, ecosystem functioning, and biodiversity conservation strategies.  

CUET Biology Syllabus 2026 Exam Pattern

CUET UG Biology syllabus 2026 is based on the Class 12 NCERT curriculum. It includes five comprehensive units covering fundamental concepts and advanced topics. Knowing the complete CUET Biology syllabus 2026 helps in preparation and efficient time management.

 CUET Biology Chapter Wise Weightage

Here's the CUET Biology Chapter Wise Weightage (Expected for 2026) based on previous year trends, exam analysis, and the structure of the NCERT Class 12 Biology syllabus. This insight helps you prioritize high-scoring topics and prepare more effectively.

CUET Biology Important topics

Here is a list of the CUET Biology Important Topics 2026 that you should prioritize for scoring high marks in the exam. These topics are  based on past paper trends, difficulty level, and chapter-wise weightage. CUET Biology syllabus is based on NCERT Class 12, so ensure all your preparation is aligned with NCERT textbooks.

 Unit I: Reproduction

• Reproduction in Flowering Plants
  Pollination (types and agents), double fertilization, fruit and seed formation

• Human Reproduction
   Reproductive systems, gametogenesis, menstrual cycle, embryo development

• Reproductive Health
   Contraceptive methods, STDs, IVF, MTP, amniocentesis

High weightage, diagram-based questions common

Unit II: Genetics and Evolution

• Mendelian Inheritance & Deviations
   Incomplete dominance, co-dominance, multiple alleles, sex-linked traits

• Molecular Basis of Inheritance
   Structure of DNA, DNA replication, Central Dogma, lac operon

• Evolution
   Darwin’s theory, Hardy-Weinberg principle, natural selection, gene flow
  Concept-heavy; practice with genetics problems and pedigree charts

Unit III: Biology and Human Welfare

• Human Health and Disease
   Disease-causing pathogens, immunity, vaccines, HIV, cancer

• Microbes in Human Welfare
  Role in food, industry, sewage treatment, biocontrol and biofertilizers

Often has factual and application-based questions

Unit IV: Biotechnology and Its Applications

• Biotechnology: Principles and Processes
  rDNA technology, tools (plasmid, restriction enzymes), PCR

• Applications of Biotechnology
  – Bt crops, gene therapy, transgenics, biosafety and biopiracy

 Direct NCERT-based questions are frequent

Unit V: Ecology and Environment

• Population and Organism Interactions
  Mutualism, competition, predation, age pyramid

• Ecosystem
   Energy flow, productivity, ecological pyramids

• Biodiversity and Conservation
   Hotspots, endangered species, conservation methods

Scoring topics, often appear in assertion-reason or case-based formats

CUET Biology Syllabus PDF Download 2026

Students appearing for CUET UG Biology 2026 can download the CUET Biology syllabus PDF for quick reference and streamlined preparation. Although NTA has not officially released the CUET 2026 Biology syllabus yet, it is expected to remain based on the NCERT Class 12 Biology curriculum, just like in 2025. The PDF contains the unit-wise chapters, key concepts, and topics to be covered for the exam.

CUET Biology Preparation Strategy 

Here are some effective CUET Biology Syllabus Preparation Tips 2026 to help you score well in the exam:

Begin by thoroughly reviewing the CUET Biology syllabus and exam pattern to understand what topics are covered and how the questions are framed.

Divide the syllabus unit-wise and allocate specific time for each topic. Prioritize high-weightage chapters like Genetics and Evolution, Human Reproduction, and Biotechnology.

Refer to NCERT and Standard Books: Use Class 11 and 12 NCERT Biology textbooks as your primary resource. 

Prepare short notes, diagrams, and concept maps for quick revision. Focus on key terms, important processes, and labelled diagrams. Revise frequently to strengthen memory retention.

Practice previous year question papers and full-length mock tests to enhance your accuracy, time management, and familiarity with the exam format.

Identify your weak topics through mock test analysis and spend more time strengthening those areas. Focus on concepts that require more clarity and practice regularly to build confidence.

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