CUET Biology Syllabus 2026: Important Chapters, Questions & Books; PDF Download

Are you planning to take the CUET 2026 Biology exam? If yes, read the article below to get the direct PDF link for CUET Biology Syllabus. Also, get the important topics, previous years' question papers, and some recommended books to prepare for the CUET Biology exam.

CUET Biology Syllabus

CUET Biology Syllabus 2026: CUET is an undergraduate entrance exam held by the National Testing Agency (NTA) for students to gain admission to different universities/colleges across India. Biology is one of the top 10 CUET subjects and requires thorough preparation for the exam. Candidates interested in taking UG courses that require Biology as one of the mapped domain subjects must know the CUET Biology Syllabus. NTA releases the CUET UG syllabus for all 37 subjects in PDF format on its official website. 

The CUET Biology Syllabus includes topics such as reproduction, biotechnology, ecology and environment, health and disease, and many more. Candidates preparing for the CUET exam must check the CUET eligibility criteria and ensure they meet all the requirements of their target university. NTA will conduct CUET 2026 for UG admissions in the second week of May 2026. The mode of examination will be Computer-Based Test (CBT) mode. Get the direct CUET Biology Syllabus PDF link and the list of biology books for exam preparation here on this page.

CUET UG Biology Syllabus 2026

The CUET Biology Syllabus includes 13 chapters and is distributed among 5 units. Candidates can take a look at the detailed CUET Biology Syllabus here.

Unit I: Reproduction 

Chapter 1:  Sexual Reproduction in Flowering Plants Flower structure; development of male and female gametophytes; pollination - types, agencies and examples; out breeding devices; pollen-pistil interaction; double fertilization; post fertilization events - development of endosperm and embryo, development of seed and formation of fruit; special modes- apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation

Chatpter 2: Human Reproduction Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis -spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition (elementary idea); lactation (elementary idea).

Chapter 3: Reproductive Health Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs); birth control - need and methods, contraception and medical termination of pregnancy (MTP); amniocentesis; infertility and assisted reproductive technologies - IVF, ZIFT, GIFT (elementary idea for general awareness).

Unit II: Genetics and Evolution

Chapter 4: Principles of Inheritance and Variation Heredity and variation: Mendelian inheritance; deviations from Mendelism – incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy; elementary idea of polygenic inheritance; chromosome theory of inheritance; chromosomes and genes; Sex
determination - in humans, birds and honey bee; linkage and crossing over; sex linked inheritance - haemophilia, colour blindness; Mendelian disorders in humans - thalassemia; chromosomal disorders in humans; Down's syndrome, Turner's and Klinefelter's syndromes.

Chapter 5: Molecular Basis of Inheritance Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central Dogma; transcription, genetic code, translation; gene expression and regulation - lac operon; Genome, Human and rice genome projects; DNA fingerprinting.

Chapter 6: Evolution Origin of life; biological evolution and evidences for biological evolution (paleontology, comparative anatomy, embryology and molecular evidences); Darwin's contribution, modern synthetic theory of evolution; mechanism of evolution - variation (mutation and recombination) and natural selection with examples,
types of natural selection; Gene flow and genetic drift; Hardy- Weinberg's principle; adaptive radiation; human evolution

Unit III: Biology and Human Welfare

Chapter 7: Human Health and Disease Pathogens; parasites causing human diseases (malaria, dengue, chikungunya, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ring worm) and their control; Basic concepts of immunology - vaccines; cancer, HIV and AIDS; Adolescence - drug and alcohol abuse.

Chapter 8: Microbes in Human Welfare. Microbes in food processing, industrial production, sewage treatment, energy generation and microbes as bio-control agents and bio-fertilizers. Antibiotics; production and judiciousus.

Unit IV: Biotechnology and its Applications 

Chapter 9: Biotechnology: Principles and Processes Genetic Engineering (Recombinant DNA Technology).

Chapter 10: Biotechnology and its Applications Application of biotechnology in health and agriculture: Human insulin and vaccine production, stem cell technology, gene therapy; genetically modified organisms - Bt crops; transgenic animals; biosafety issues, biopiracy and patents.

Unit V: Ecology and Environment 

Chapter 11:  Organisms and Populations Population interactions - mutualism, competition, predation, parasitism; population attributes - growth, birth rate and death rate, age distribution. (Topics excluded: Organism and its Environment, Major Aboitic Factors, Responses to Abioitic Factors, Adaptations)

Chapter 12: Ecosystem Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy (Topics excluded: Ecological Succession and Nutrient Cycles).

Chapter 13: Biodiversity and Conservation Biodiversity-Concept, patterns, importance; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife, sanctuaries, and Ramsar sites.

Also Download: