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CUET
Biology Syllabus

CUET (UG) 2025 Biology Syllabus

The Common University Entrance Test, or CUET, was introduced to provide a common platform and equal opportunities to candidates across India to help them establish a better connection with the universities. It is essential to undergo this competitive exam to be able to pursue undergraduate courses in top central universities, state, private, and deemed universities. The examination is conducted by the National Testing Agency (NTA) to ensure transparency. Biology is a popular subject in CUET (UG) that stands out for students who want to pursue careers in biotechnology, biochemistry, life sciences, biomedical science, and related fields. It is important for candidates to have a thorough understanding of the CUET 2025 biology syllabus to achieve a high score and get into their desired college or university.

1.0CUET UG 2025 Biology Syllabus Overview

To succeed in the CUET UG 2025 examination one needs to have a comprehensive understanding of the CUET UG biology syllabus. The syllabus is modified according to the NCERT curriculum for classes XI and XII. The whole syllabus is distributed among five units. Foundational knowledge about the concepts in each one of them is essential for clearing this exam. 

Topics

Sub Topics

Reproduction

  • Reproduction in organisms
  • Modes of reproduction—asexual and sexual
  • Asexual reproduction; modes- binary fission, sporulation, budding, gemmule, fragmentation
  • Vegetative propagation in plants
  • Sexual reproduction in flowering plants
  • Pollination: types, agencies and examples
  • Outbreeding devices
  • Pollen-pistil interaction
  • Double fertilisation
  • Post-fertilisation events: development of endosperm and embryo, Development of seed and formation of fruit
  • Special modes: apomixis, parthenocarpy, polyembryony
  • Significance of seed and fruit formation
  • Human reproduction: male and female reproductive systems
  • Microscopic anatomy of testis and ovary
  • Gametogenesis: spermatogenesis & oogenesis
  • Menstrual cycle
  • Fertilisation, embryo development up to blastocyst formation, implantation
  • Pregnancy and placenta formation (elementary idea)
  • Parturition (elementary idea)
  • Lactation (elementary idea)
  • Reproductive health
  • Prevention of sexually transmitted diseases (STD)
  • Birth control: need and methods, contraception and Medical Termination of Pregnancy (MTP)
  • Amniocentesis
  • Infertility and Assisted Reproductive Technologies: IVF, ZIFT, GIFT

Genetics & Evolution

  • Heredity and Variation: Mendelian Inheritance
  • Deviations from Mendelism: incomplete dominance, codominance, 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, 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
  • Molecular basis of inheritance
  • Structure of DNA and RNA
  • DNA packaging
  • DNA replication
  • Central dogma
  • Transcription, genetic code, translation
  • Gene expression and regulation– Lac Operon
  • Genome and Human Genome Project
  • DNA fingerprinting
  • Evolution: Origin of Life
  • Biological evolution and evidence for biological evolution
  • Darwin’s contribution, the modern synthetic theory of evolution
  • Mechanism of evolution– variation and natural selection with examples, types of natural selection
  • Gene flow and genetic drift
  • Hardy- Weinberg’s principle
  • Adaptive radiation; human evolution

Biology and Human Welfare

  • Health and disease
  • Pathogens
  • Parasites causing human diseases
  • Basic concepts of immunology–vaccines
  • Cancer, HIV and AIDs
  • Adolescence, drug and alcohol abuse
  • Improvement in food production: plant breeding, tissue culture, single cell protein, biofortification
  • Apiculture and animal husbandry
  • Microbes in human welfare: In household food processing, industrial production, sewage treatment, energy generation and as biocontrol agents and biofertilisers.

Biotechnology and its Applications

  • Principles and process of Biotechnology: genetic engineering (recombinant DNA technology)
  • Application of Biotechnology in health and agriculture: Human insulin and vaccine production, gene therapy
  • Genetically modified organisms- Bt crops
  • Transgenic animals
  • Biosafety issues– biopiracy and patents

Ecology and Environment

  • Organisms and environment: habitat and niche
  • Population and ecological adaptations
  • Population interactions: mutualism, competition, predation, parasitism
  • Population attributes—growth, birth rate and death rate, age distribution
  • Ecosystems: patterns, components
  • Productivity and decomposition
  • Energy flow
  • Pyramids of number, biomass, and energy
  • Nutrient cycling (carbon and phosphorous)
  • Ecological succession
  • Ecological services: Carbon fixation, pollination, oxygen release
  • Biodiversity and its conservation: the concept of biodiversity
  • Patterns of biodiversity
  • Importance of biodiversity
  • Loss of biodiversity
  • Biodiversity conservation
  • Hotspots, endangered organisms, extinction, Red Data Book, biosphere reserves, national parks and sanctuaries
  • Environmental issues: air pollution and its control, water pollution and its control, agrochemicals and their effects
  • Solid waste management: radioactive waste management
  • Greenhouse effect and global warming
  • Ozone depletion
  • Deforestation: any three case studies as success stories addressing environmental issues

2.0CUET UG Biology 2025 Chapter Wise Weightage

It is important to understand the section-wise weightage of the CUET UG biology syllabus to understand which areas to prioritise during preparation. With a thorough analysis of the papers from previous years, one can expect a chapter-wise weightage like the below table: 

Topics

Expected Number of Questions

Reproduction

15

Ecology and Environment

10

Biology and Human Welfare

8

Genetics and Evolution

10

Biotechnology and its Application

7

3.0Tips For CUET 2025 Biology Syllabus Preparation

Most students preparing for the CUET syllabus for biology students prepare for the board examination simultaneously, which can be challenging. However, with the right approach and dedication, it is definitely manageable. 

  • Start Planning Early: Start preparing for CUET UG biology well in advance. That way, you can avoid last-minute anxiety and panic due to underpreparation. Allocate specific time slots for CUET preparation alongside studies for regular board exams.
  • Understand The Syllabus: Thoroughly understanding the CUET biology syllabus is essential for exam preparation. Analyse question papers from previous years to understand section-wise weightage. Identify areas of strengths and weaknesses to work on utilising and improving them to the best of one’s abilities. 
  • Create A Balanced TimetableIt is important to have dedicated time for both CUET preparation and board examination to ensure the best performance in each of them. Ensure that you are covering all the topics. 
  • Prioritise Topics: Work on topics that have more weightage or lack enough understanding or preparation. Allocate more time for areas in the syllabus that seem particularly challenging. 
  • Create Effective Study Techniques: With the rising competition in the CUET UG, it is not enough to just work hard; one has to work smart as well for the best shot at success. Using active learning techniques like summarising, making flashcards, and practising past papers helps candidates study efficiently and boosts retention. 
  • Regular Revision: By regularly revising topics during preparation, one can ensure they do not forget the old knowledge while learning new things. This habit reinforces the concepts, making sure they stay fresh in memory. 
  • Practice Time Management: Understanding time management is the most crucial part of CUET UG preparation. Since all the tests are time-bound and the questions carry negative marks, it is essential for candidates to utilise the limited time efficiently. Practice mock tests and sample papers under a time constraint to improve speed and accuracy. 
  • Stay Positive and Stay Consistent: It is important to have a positive attitude and stay consistent with the study routine. The right mindset and consistency can make all the difference in an exam like CUET. 

4.0CUET UG 2025 Biology Exam Pattern

CUET UG typically consists of multiple-choice questions that are designed to test conceptual grasp, analytical thinking, and problem-solving skills. 

Particulars

Details

Exam Frequency

Once a year

Question Type

MCQ

No. of Total Questions

50

Number Of Questions To Be Attempted

40

Marking Scheme

  • +5 for each correct answer
  •  -1 for each incorrect answer 
  • No marks will be deducted for Unattempted questions

Total Marks

200

Duration for biology paper

45 Minutes

The CUET UG biology syllabus can seem challenging due to its intricate concepts, but it is manageable with the right approach. The syllabus for the biology paper plays a huge role in helping candidates understand high-weightage topics, identify their weaknesses and strengths and adopt effective strategies.

Table of Contents


  • 1.0CUET UG 2025 Biology Syllabus Overview
  • 2.0CUET UG Biology 2025 Chapter Wise Weightage
  • 3.0Tips For CUET 2025 Biology Syllabus Preparation
  • 4.0CUET UG 2025 Biology Exam Pattern

Frequently Asked Questions

CUET is closely modelled after the NCERT syllabus for all domains of subjects. Thorough preparation of the NCERT syllabus is essential to succeeding in CUET UG. However, there might be additional topics in CUET UG that are not covered by the NCERT. Candidates are advised to closely follow the official syllabus for comprehensive preparation.

The syllabus for CUET UG 2025 constitutes five units: Reproduction, Genetics & Evolution, Biology & Human Welfare, Biotechnology & its Applications, and Ecology & Environment. The candidates are advised to thoroughly prepare the contents that are part of this unit to improve their chances.

CUET allots 45 minutes for candidates to finish their biology examination.

One can access the CUET biology syllabus pdf on the official website of CUET.

Typically, there are 50 questions in the biology paper. The candidates are required to answer 40 out of those 50 questions.

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