CUET 2026 exam was conducted at national level for admission to UG courses. Candidates preparing for CUET Biology must check 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 & Chapter Wise Weightage
CUET Biology Important Topics and Weightage: The National Testing Agency will be conducting the CUET exam for UG admissions across India at multiple exam centres. Candidates aspiring for Biology related courses must get an understanding of the CUET Biology important topics and chapter-wise weightage during CUET preparation.
While preparing for CUET 2026 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.
- CUET Biology Important Topics
- CUET Biology Chapter Wise Weightage
- CUET Biology Exam Pattern 2026
- CUET Biology Syllabus 2026
- CUET Domain Subjects: Syllabus and Question Paper
- CUET Biology Preparation Tips
- CUET Biology Preparation Books
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 |
|
| Genetics and Evolution |
|
| Biology and Human Welfare |
|
| Biotechnology and Its Application |
|
| Ecology and Environment |
|
Commonly asked questions
Practicing with CUET UG (Common University Entrance Test) question papers from previous years offers following benefits:
Helps in knowing format, structure, and types of questions.
Student can know repeated question types.
Help students know weak and strong sections
Helps in developing important skills.
Regularly solving CUET question papers improves problem-solving skills and speed.
UGC has announced the deletion of 26 subjects from CUET UG 2025 onwards. CUET UG 20 foreign languages and six domain subjects have been removed. Check the list below to know the name of the subjects:
- Foreign Languages (French, Spanish, German, Nepali, Persian, Italian, Arabic, Sindhi, Kashmiri, Konkani, Bodo, Dogri, Maithili, Manipuri, Santhali, Sanskrit, Tibetan, Japanese, Russian, Chinese)
- Domain Subjetcs (Entrepreneurship, Teaching Aptitude, Fashion Studies, Tourism, Legal Studies, Engineering Graphics)
Yes, NTA has released the CUET response sheet 2026. The direct link to download the answer key and response sheet is available at official website.
The CUET questions are objective in nature and carries four options also known as MCQs. Candidates will have to choose the correct answer option and click on it with the help of mouse. Since CUET UG 2026 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, students will get +5 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.
CUET Biology Chapter Wise Weightage
Candidates can evaluate the CUET Biology chapter wise weightage after going through past exam analysis for the domain subject and question papers. The weightage for different chapter in CUET Biology paper can change each year. The table below mentions the expected chapter-wise weightage for CUET Biology exam as per the past trends:
| Important topics |
Expected number of questions |
|---|---|
| Reproduction |
15-18 |
| Ecology and Environment |
10-12 |
| Biology and Human Welfare |
8-10 |
| Genetics and Evolution |
10-12 |
| Biotechnology and Its Application |
7-8 |
Also Read: CUET Chapter Wise Weightage
CUET Biology Exam Pattern 2026
Before candidates start preparing, they must obtain a good understanding of the CUET exam pattern. CUET exam pattern remains the same, irrespective of the domain subject. Refer to space below for more details on CUET UG exam pattern 2026.
- Number of Questions: 50 Questions
- Nature of Questions: Objective-type
- CUET Biology exam duration: 60 minutes
- CUET Total Marks: 250 per subject
- Marking Scheme:
- +5 for each correct answer
- -1 for each incorrect answer
Commonly asked questions
NTA prescribes the CUET UG marking scheme. Check below to know the CUET UG marking scheme 2026:
- Correct answer or the most appropriate answer: Five marks (+5)
- Any incorrect option marked will be given minus one mark (-1).
- Unanswered/Marked for Review will be given no mark (0).
- If more than one option is found to be correct then Five marks (+5) will be awarded to only those who have marked any of the correct options.
- If all options are found to be correct then Five marks (+5) will be awarded to all those who have attempted the question.
- If none of the options is found correct or a question is found to be wrong or a question is dropped, then all candidates who have attempted the dropped question will be given five marks (+5) marks.
Common University Entrance Test (CUET) sample papers are released by the conducting body, National Testing Agency (NTA). To download the CUET question papers follow the steps below:
- Go to- CUET Question Paper
- Select CUET subject to download the question paper for
- Click on the tab download
- Create the login details for new registrations
- Link to download the CUET question paper will be sent on the registered email ID
- Click on the link provided and save the PDF.
CUET UG question paper for each subject will consist of 50 questions. Candidates will be required to attempt all questions and no optional questions will be provided. In CUET UG 2026 there are 37 subjects- 13 languages, 23 domain subjects and general tests. While filling the CUET application form, candidates can select upto five CUET subjects aligning with the subjects studied in class 12th and course requirement.
Candidates must attempt all the questions of the subjects selected. However, candidates must keep in mind the negative marking and select the options carefully.
CUET UG Language section will include 50 questions. Candidates must attempt all questions. There will be no optional questions.
The language section will check 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.
Explore colleges based on CUET
Want better recommendations?
There is a 90% more chance of getting best college recommendations by sharing preferences.
- Chat with our counselor
- Get your personalised list of colleges & exams matching your preferences
CUET Biology Syllabus 2026
The space below mentions the CUET Biology syllabus for 2026-27 admission cycle:
Unit I: Reproduction
1. Sexual Reproduction in Flowering Plants: Pre-fertilisation: structure and events - stamen, microsporangium and pollen grain, pistil, megasporangium and embryo sac; Development of male (microsporogenesis) and female gametophyte (megasporogenesis); Pollination – types, agents and examples; Out breeding devices; Pollen-pistil interaction; Double fertilisation; Post fertilisation: structure and events – development of endosperm and embryo; Formation of seed and fruit and parthenocarpy; Significance of seed in angiosperms; Apomixis and polyembryony.
2. Human Reproduction: Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis - spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development up to blastocyst formation, implantation; pregnancy and embryoni development and placenta; Parturition and lactation.
3. Reproductive Health: Problems and strateies - amniocentesis; Population stabilisation and birth control – various methods of contraception; Medical termination of pregnancy (MTP); Sexually transmitted infections (STIs); Infertility – Assisted reproductive technologies (IVF, ZIFT, GIFT, ICSI and IUI).
Unit II: Genetics and Evolution
1. Principles of Inheritance and Variation: Mendel’s law of inheritance: Inheritance of one gene – Law of dominance, law of segregation (test and back cross); Deviation from Mendelism – incomplete dominance and co-dominance; Multiple alleles and inheritance of blood groups; Inheritance of two genes – law of independent assortment, dihybrid cross; Chromosomal theory of inheritance; Linkage and recombination; Polygenic inheritance; Pleiotropy; Sex determination in humans, birds and honey bee; Mutation; Genetic disorders – pedigree analysis, Mendelian disorders (colour blindness, haemophilia, sickle-cell anaemia, phenylketonuria and thalassemia), chromosomal disorders in humans (aneuploidy, polyploidy, Down's syndrome, Turner's syndrome and Klinefelter's syndrome).
2. Molecular Basis of Inheritance: Structure and packaging of DNA helix; Search for genetic material (transforming principle and Hershey-Chase experiment); Properties of genetic material; Replication (Meselson and Stahl’s experiment); Transcription – transcription unit and gene; RNA world – types of RNA and process of transcription; Genetic code and mutations; tRNA; Translation; Regulation of gene expression – Lac operon; Human Genome Project (goals, salient features and applications); DNA fingerprinting (polymorphism and VNTR).
3. Evolution: Origin of life – Miller’s experiment; Concepts of evolution (Darwin's contribution); Evidences for evolution (embryology, paleontology, comparative anatomy, divergent and convergent evolution and industrial evolution); Adaptive radiation; Biological evolution; Natural selection; Mechanism of evolution; Hardy-Weinberg principle and affecting factors (gene migration, genetic drift, mutation, recombination and natural selection); Evolution of plants and vertebrates through geological periods; Origin and evolution of man.
Unit III: Biology and Human Welfare
1. Human Health and Disease: Introduction about health; Common diseases in humans (typhoid, pneumonia, common cold, malaria, amoebiasis, ascariasis, filariasis and ringworms); Immunity – innate and acquired immunity, active and passive immunity, vaccination and immunisation, allergies, auto-immunity and immune system in human; AIDS; Cancer; Drugs and alcohol abuse - adolescence, addiction, effects of drug abuse, prevention and control.
2. Microbes in Human Welfare: Microbes in household products; Microbes in industrial products – beverages, antibiotics, enzymes and bioactive molecules; Microbes in sewage treatment and production of biogas, Microbes as biocontrol agents and biofertilisers.
Unit IV: Biotechnology and its Applications
1. Biotechnology: Principles and Processes: Principles of biotechnology; Tools of recombinant DNA technology – restriction enzymes, cloning vectors, competent host; Processes of rDNA technology – isolation, amplification of gene (PCR), insertion of rDNA in host and bioreactors; Downstream processing.
2. Biotechnology and its Applications: Application of biotechnology in agriculture – tissue
culture, genetically modified organisms, Bt cotton, RNA interference; Biotechnology in medicine – insulin, gene therapy and molecular diagnosis; Transgenic animals; Ethical issues – biopiracy and patents.
Unit V: Ecology and Environment
1. Organisms and Populations: Population attributes - birth and death rate, age pyramids; Population growth – exponential and logistic growth; Life history variation; Population interactions – predation, competition, parasitism, commensalism, mutualism and amensalism.
2. Ecosystem: Structure and function; Productivity; Decomposition; Energy flow – different trophic levels, food chain and food web; Ecological pyramids – pyramid of energy, biomass and number.
3. Biodiversity and Conservation: Biodiversity – concept, patterns and importance; Causes of biodiversity loss; Biodiversity conservation – approaches (narrowly utilitarian, broadly utilitarian and ethical); Methods of biodiversity conservation – in situ (endemism, hotspots and sacred groves etc.), ex situ (Wildlife safaris, zoological parks and cryopreservation etc.).
Also Read: CUET Syllabus 2026
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:
Commonly asked questions
Common University Entrance Test UG 2025 question papers can be download at - CUET UG 2025 Question Papers. Candidates can visit the provided link and download subject wise CUET question paper 2025 PDF online for free. CUET PYQs are important for exam preparation.
To download the CUET UG previous year question papers for all subjects, candidates must visit the link provided below:
Candidates can access the subject-wise CUET UG question papers for past four years.
CUET Biology Preparation Tips
During the CUET 2026 preparation for Biology domain subject, candidates can follow the preparation tips for holistic exam preparation:
- Analyse past papers to know the important topics that appear in CUET Biology question paper.
- Study using CBSE books to obtain foundational clarity of the topics.
- Practise previous year question papers. Candidates can also practise using mock tests: This will help candidates in improving their speed and accuracy.
- Make short notes for help in revision phase
Preparing for any competitive exam will also require clarity of the exam pattern. Candidates must analyse the past papers to understand test structure and syllabus.
Explore more Science exams with upcoming dates
13 Jun '26 - 21 Jun '26
24 Jun '26
30 Jun '26
1 Jul '26
10 Jul '26
12 Jul '26
21 Jun '26
28 Jun '26
6 Jul '26 - 20 Jul '26
CUET Biology Preparation Books
Students preparing for CUET Biology exam for admission to participating university/college by taking this subject as part of the combination can check below to some recommended books for CUET.
- NCERT Class 12 Biology Textbook
- Pradeep’s A Text Book of Biology Class 12 by P.S. Dhami
- Together with Biology by S. Chand
- Biology by Campbell and Reece
- S. Chand’s Biology for class XII by B.P. Pandey
Read More:
News & Updates
Explore Other Exams
24 Jun '26 | NEST 2026 Exam Result |
25 Jun '26 - 25 Dec '26 | NEST 2026 Exam Result |
13 Jun '26 - 21 Jun '26 | Correction for Selective optio... |
9 Jul '26 - 13 Jul '26 | Response Sheet |
Jul '25 | ITM NEST 2025 Result Date |
Jun '25 | ITM NEST 2025 Exam date |
24 Jun '26 - 30 Jun '26 | OUAT Entrance Exam 2026 Admit ... |
1 Jul '26 - 2 Jul '26 | OUAT Entrance Exam 2026 Date |
Jul '22 | DAVV CET 2022 Registration |
Dec '24 | TISSNET 2024 Mock Test |
Jun '24 | TISS Online Assessment 2024 |
Student Forum
Anything you would want to ask experts?Answered Yesterday
Dear reader,
Lovely Professional University (LPU) is a great substitute for aiming for a competitive CUET score for an Integrated B.Sc.-M.Sc. Biotechnology program. With cutting-edge research labs, a wealth of real-world experience, and a stellar record of high-package placements with top internation
A
Contributor-Level 10
Answered 2 days ago
Yes, Sharda University considers CUET-UG scores for admission in BSc/ BSc (Hons) courses. However, it is not compulsory. Aspirants can also appear for SUAT conducted by the university for admission in BSc courses.
N
Guide-Level 15
Answered 2 days ago
Yes, Jamia Millia Islamia does accepts CUET-UG scores for admission in four Applied Mathematics and four-year BSc (Multi Disciplinary) courses. For all other BSc/ BSc (Hons) specialisations, aspirants need to appear for JMI Entrance Test.
N
Guide-Level 15
Answered 4 days ago
No, CUET marks is not a compulsory requirement for getting admission in MSc programme of LPU. However, the university accepts valid scores of CUET as well as it's own in-house entrance exam called LPUNEST for giving admission in MSc at LPU.
R
Contributor-Level 10
Answered 4 days ago
Yes, Amity Noida does accepts CUET-UG scores for admission in BA LLB/ BA LLB (Hons) courses. Candidates must also meet eligibility i.e. passing Class 12 with at least 60% aggregate for admission in BA LLB programme.
N
Guide-Level 15
Answered 5 days ago
Christ University Entrance Test (CUET) is a mandatory 90-minute test for admission in BA LLB at Christ University. The exam consists of 120 MCQs as follows:
Section | Maximum Marks/Number of Questions |
|---|---|
English | 30 |
General Knowledge | 30 |
Reasoning | 25 |
Data Analysis & Interpretation | 20 |
Current Affairs | 15 |
S
Contributor-Level 10
Answered 6 days ago
Amity Mumbai does not accepts CUET scores as per the information on the official website. The selection is based on merit for most of the UG and PG courses. The university conducts entrance test or accepts scores in national or state-level entrance exams for admission in BTech, BArch, MBA and PhD co
N
Guide-Level 15
Answered 6 days ago
No, CUET is not a compulsory requirement for taking admission in Fergusson College. The college offers merit-based admission into the UG courses. Admission into the PG courses is offered on the basis of valid score in the online PG Entrance Exam conducted by Fergusson College.
R
Contributor-Level 10
Answered a week ago
Yes, University of Delhi admit candidates to BBA courses based on CUET scores as well. The common entrance exam is conducted by National Testing Agency. Candidates have to check eligibility and then apply for CUET. The students can select college and course preference. In the final step, the seat al
R
Contributor-Level 10
Answered a week ago
University of Delhi BBA admission is through CUET exam. Candidates who meet course eligibility need to appear for this NTA exam to get a seat. There may not be any other provision for admission. Students who pass CUET need to register for DU CSAS for seat allotment. The complete process is carried o
A
Contributor-Level 10
Nupur Jain started with a passion for educational content writing, which soon grew into a meaningful journey of helping students through reliable guidance. A commerce graduate from Delhi University, she has spent ov
Read Full Bio