CUET Biology Important Topics & Chapter Wise Weightage

Common University Entrance Test 2025 ( CUET )

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Abhishek
Abhishek Dhawan
Assistant Manager – Editorial Content
Updated on Dec 11, 2024 15:32 IST

CUET 2025 exam will be held in May. Candidates preparing for CUET Biology must dive into CUET Biology important topics and chapter-wise weightage to ace the examination. Check the important subjects and question weightage for preparation.

CUET Biology Important Topics & Weightage

CUET Biology Important Topics & Chapter Wise Weightage

CUET Biology Important Topics and Weightage: The National Testing Agency will conduct CUET exam for UG admissions across India. As per the tentative CUET 2025 exam dates, the exam will be conducted in the month of May. CUET datehseet 2025 will mention the Biology exam date and slot time. Candidates aspiring for Biology related courses have to select Biology as their domain subject during the CUET registration 2025. Such candidates must get an understanding of the CUET Biology important topics and chapter-wise weightage before they start the CUET preparation.

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While preparing for CUET 2025 exam for Biology admission, candidates must focus on the important topics and chapter weightage. Read this article to know the CUET Biology important topics and chapter wise weightage for a top-notch preparation strategy.

Q:   From where can I download CUET sample papers?

A:

Common University Entrance Test (CUET) sample papers are released by the conducting body, National Testing Agency (NTA). To download the CUET sample papers and previous year question papers candidates can get the direct link on this website. To download the CUET question papers candidates must refer the steps mentioned below:

Step 1- Visit the link provided- CUET Question Paper

Step 2- Scroll down the page and look for the subject to download the question paper for

Step 3- Click on the tab download

Step 4- Create the login credentials for new registrations

Step 5- Link to download the CUET question paper will be sent on the registered email ID

Step 6- Click on the link provided and save the PDF.

Q:   How many questions are there in the language section of CUET UG?

A:

CUET UG Language section will consist of 50 questions. Candidates will be required to attempt 40 out of 50 question in CUET UG exam. The language section will assess candidate's reading comprehension based on different types of passages. This section will also include questions from grammar. To prepare for the CUET UG language section candidates must solve previous year question papers and mock tests to become familiar with the type of questions asked in the exam. Candidates will be given duration of 45 minutes to attend this section of CUET UG. 

Q:   What type of questions are asked in the CUET exam?

A:

The CUET questions are objective and carries multiple choices (MCQs). Each question will have four answer options. Candidates will have to choose the correct answer option and click on it with the help of mouse. Since CUET UG 2025 exam will be conducted in a CBT mode, test-takers will be able to mark only one answer option. In case it is the correct option, they will get full marks and in case of wrong answer, negative marking scheme will be applied. Hence, candidates must ensure the accuracy of the answer before selecting the answer. Before the final submission, they can change the answer option in case they realise that they have entered a wrong answer option earlier.

CUET Biology Exam Pattern 2025

It is essential for aspirants to have a good understanding of the CUET exam pattern, before they start preparing. CUET exam pattern remains the same, regardless of the subject domain. Refer to the table below for more details on CUET UG exam pattern 2025.

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Features

Details

Number of questions

50 (compulsory)

Type of questions

Multiple Choice Question (MCQ)

CUET Biology exam duration

60 minutes

CUET marking scheme

+5 for each correct answer

-1 for each incorrect answer

CUET Biology Syllabus 2025

The table below mentions the CUET Biology syllabus:

Unit as per CUET Biology Syllabus

Topics in CUET Biology Syllabus

Unit I: Reproduction 

Reproduction in organisms: Reproduction, a characteristic feature of all organisms for the continuation of species; Modes of reproduction –Asexual and sexual; Asexual reproduction; Modes- Binary fission, sporulation, budding, gemmule, fragmentation; vegetative propagation in plants.

Sexual reproduction in flowering plants: Flower structure; Development of male and female gametophytes; Pollination–types, agencies and examples; Outbreedings 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 and fruit formation.

Human Reproduction: Male and female reproductive systems; Microscopic anatomy of testis and ovary; Gametogenesis- spermatogenesis & oogenesis; Menstrual cycle; Fertilisation, embryo development upto blastocyst formation, implantation; Pregnancy and placenta formation (Elementary idea); Parturition (Elementary idea); Lactation (Elementary idea). 

Reproductive health: Need for reproductive health and 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 (Elementary idea for general awareness).

Unit II: Genetics and Evolution

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, honeybee; Linkage and crossing over; Sex-linked inheritance- Haemophilia, Colour blindness; Mendelian disorders in humans– Thalassemia; Chromosomal disorders in humans; Down syndrome, Turner’s and Klinefelter’s syndromes. 

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 and human genome project; DNA fingerprinting.

Evolution: Origin of life; Biological evolution and evidence for biological evolution (Paleontological, comparative anatomy, embryology, and molecular evidence); 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’sprinciple; Adaptive Radiation; Human evolution.

Unit III: Biology and human welfare

Health and Disease: Pathogens; parasites causing human diseases (Malaria, Filariasis, Ascariasis, Typhoid, Pneumonia, common cold, amoebiasis, ring worm); 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 biofertilizers.

Unit IV: Biotechnology and its Applications 

Principles and process of Biotechnology: Genetic engineering(RecombinantDNAtechnology). 

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.

Unit V: 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, energy; Nutrient cycling (carbon and phosphorous); Ecological succession; Ecological Services– Carbon fixation, pollination, oxygen release. 

Biodiversity and its conservation: 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.

Also Read: CUET Syllabus 2025

CUET Biology Important Topics

The table below mentions the unit wise important topics for CUET Biology exam:

Name of CUET Biology Unit

CUET Biology Important Topics

Reproduction

  • Reproduction in Organism
  • Sexual Reproduction in flowering plants
  • Reproduction in Humans
  • Reproductive Health

Genetics and Evolution

  • Heredity and variations
  • Molecular Basis of Inheritance
  • Sex-linked Inheritance
  • Gene Expression and regulation
  • Mechanism of Evolution
  • Evolution

Biology and Human Welfare

  • Health and Disease
  • Microbes in Human Welfare
  • Improvement in Food Production

Biotechnology and Its Application

  • Applications of Biotechnology in health and agriculture
  • Principle and process of Biotechnology

Ecology and Environment

  • Organism and environment
  • Biodiversity and its conservation
  • Ecosystems
  • Environmental issues

CUET Biology Chapter Wise Weightage

Candidates preparing for CUET Biology exam can refer to the previous year's analysis to get an idea of important topics and the number of questions from each topic. The table below mentions the expected chapter-wise weightage for CUET Biology exam based on the past trends:

Important 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

Also Read: CUET Chapter Wise Weightage for Science/Commerce/Humanities

CUET Domain Subjects: Syllabus and Question Paper

Candidates aspiring for CUET can download the CUET domain subject wise question paper and syllabus PDF for other subjects below:

Q:   Is it compulsory to attempt all the sections of the CUET question paper?

A:

CUET UG section I and section II, consisting of the language and domain-wise subjects are compulsory to attempt. On the other hand, the third section consisting of General Knowledge and aptitude questions is not compulsory to attempt unless it is the requirement of the programme the candidate has applied for. Candidates will have to choose the subjects while filling the CUET UG application form. In case candidates do not opt for the General Test, then they will be evaluated only based on their performance in Section 1 and Section 2 as per the requirement of the course and university that candidate has applied for. NTA will use the normalisation method to score candidates and universities will prepare the merit lists accordingly. 

Q:   Why should I practice with CUET question papers from previous years?

A:

Practicing with CUET UG (Common University Entrance Test) question papers from previous years offers several valuable benefits exam preparation:

  1. Familiarity with Exam Pattern: CUET question papers from past years provide insight into the format, structure, and types of questions that commonly appear in the exam.

  2. Understanding Question Types: By solving previous year's CUET question papers, candidates can identify recurring question types and patterns.

  3. Assessment of Preparedness: Practicing with CUET question papers helps candidates assess their strengths and weaknesses.

  4. Time Management: CUET is a time-bound exam with strict time limits. Solving CUET question papers within the allotted time helps candidates develop effective time management strategies.

  5. Improvement in Speed and Accuracy: Regularly solving CUET question papers enhances problem-solving skills, speed, and accuracy. 

  6. Reduced Stress: The more candidates practice, the more confident and relaxed one feels on the actual exam day, reducing test anxiety and improving your overall performance.

Q:   What type of questions are asked in the CUET exam?

A:

CUET questions are objective and multiple-choice questions (MCQs) type. The number of questions will vary for each subject or section and paper. There will not be any descriptive question type for CUET UG 2025. Candidates can check the below table to know about CUET Exam Structure:

Section

Number of Questions

Duration

Question Types

Section IA

50 questions

60 Minutes

Language to be tested through Reading Comprehension based on different types of passages–Factual, Literary and Narrative, (Literary Aptitude and Vocabulary)

Section II

50 questions

60 Minutes

  • Input text can be used for MCQ Based Questions

  • MCQs based on NCERT Class 12 syllabus only

Section III

50 questions

60 minutes

  • Input text can be used for MCQ Based Questions

  • General Knowledge, Current Affairs, General Mental Ability, Numerical Ability, Quantitative Reasoning (Simple application of basic mathematical concepts arithmetic/algebra geometry/mensuration/s tat taught till Grade 8), Logical and Analytical Reasoning

Q:   When are CUET previous year question papers released?

A:

CUET previous year question papers have been released for CUET 2024. National Testing Agency releases the CUET previous year question papers for all subjects and languages. Candidates preparing for CUET must download the previous year question papers to become familiar with the CUET exam pattern and the difficulty level of the question paper. NTA releases the CUET question papers for Languages, Domain subjects and General test seperately. No pre registrations are required to download the CUET previous year question papers. 

CUET 2025 will be scheduled tentatively in May/June in CBT mode. CUET previous year question papers for 2024 is available for downlaod. Candidates can download the CUET 2024 question papers here

Subjects

CUET Syllabus

CUET Question Paper

English

CUET English Syllabus

CUET English Question Paper

Biology

CUET Biology Syllabus

CUET Biology Question Paper

Accountancy/ Book Keeping

CUET Accountancy Syllabus

CUET Accountancy Question Paper

Business Studies

CUET Business Studies Syllabus

CUET Business Studies Question Paper

Chemistry

CUET Biology Syllabus

CUET Biology Question Paper

Computer Science/ Informatics Practices

CUET Computer Science Syllabus

CUET Computer Science Question Paper

Engineering Graphics

CUET Engineering Graphics Syllabus

CUET Engineering Graphics Question Paper

Entrepreneurship

CUET Entrepreneurship Syllabus

CUET Entrepreneurship Question Paper

Geography/Geology

CUET Geography Syllabus

CUET Geography Question Paper

Home Science

CUET Home Science Syllabus

CUET Home Science Question Paper

Knowledge Tradition and Practices of India

CUET Knowledge Tradition and Practices of India Syllabus

CUET Knowledge Tradition and Practices of India Question Paper

Legal Studies

CUET Legal Studies Syllabus

CUET Legal Studies Question Paper

Environmental Science

CUET Environmental Science Syllabus

CUET Environmental Science Question Paper

Mathematics

CUET Mathematics Syllabus

CUET Mathematics Question Paper

Physical Education/ NCC /Yoga

CUET Physical Education Syllabus

CUET Physical Education Paper

Physics

CUET Physics Syllabus

CUET Physics Question Paper

Political Science

CUET Political Science Syllabus

CUET Political Science Question Paper

Psychology

CUET Psychology Syllabus

CUET Psychology Question Paper

Sociology

CUET Sociology Syllabus

CUET Sociology Question Paper

Teaching Aptitude

CUET Teaching Aptitude Syllabus

CUET Teaching Aptitude Question Paper

Agriculture

CUET Agriculture Syllabus

CUET Agriculture Question Paper

Mass Media/ Mass Communication

CUET Mass Media/ Mass Communication Syllabus

CUET Mass Media/ Mass Communication Question Paper

Anthropology

CUET Anthropology Syllabus

CUET Anthropology Question Paper

Fine Arts/ Visual Arts (Sculpture/ Painting)/Commercial Arts

CUET Fine Arts Syllabus

CUET Fine Arts Question Paper

Performing Arts

CUET Performing Arts Syllabus

CUET Performing Arts Question Paper

Sanskrit

CUET Sanskrit Syllabus

CUET Sanskrit Question Paper

History

CUET History Syllabus

CUET History Question Paper

General Test

CUET General Test Syllabus

CUET General Test Question Paper

CUET Biology Preparation Tips

During the CUET 2025 preparation for Biology domain subject, candidates can follow the preparation tips for holistic exam preparation:

  • Prioritise Important Topics: Identify high-weightage topics in previous CUET Biology exams and prioritise the study focus on those areas.
  • Conceptual Clarity: Candidates must focus on conceptual clarity to tackle diverse question types effectively.
  • Regular Practice: Solve sample papers and previous years' question papers to familiarize yourself with the exam pattern and improve time management skills.
  • Effective Revision: Plan regular revision sessions to reinforce learned concepts, ensuring better retention and recall during the exam. Use the study material, including best books for CUET 2025 for enhanced preparation strategy.
  • Stay Updated: Keep abreast of recent developments in biology, especially in areas that may have seen advancements, to stay well-prepared for the exam.
  • Prepare Effectively: Take ample CUET mock tests as it provide a simulation of the exam environment. Additionally, candidates must practise based on the previous year’s CUET question papers to improve overall efficiency.

Read More:

About the Author
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Abhishek Dhawan
Assistant Manager – Editorial Content

With a creative soul, Abhishek is inclined towards anything in the creative space be it drawing, painting, craft, or writing. He has been working in the ed-tech industry since he started his career. Besides creative... Read Full Bio

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