Candidates 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 conducts 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. NTA has successfully conducted CUET 2026 exam in May. 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
- CUET Biology Syllabus
- 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
Candidates must have a good understanding of the CUET exam pattern. The paper structure remains the same, irrespective of the domain subject. Refer to space below for more details on exam pattern.
- 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.
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CUET Biology Syllabus
The space below mentions the CUET Biology syllabus:
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.
Candidates who had attempted the dropped question will get full marks as per the marking scheme. No matter what your answer was.
CUET Biology Preparation Tips
During the CUET 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.
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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
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Student Forum
Anything you would want to ask experts?Answered an hour ago
As a student, I'd say yes, Galgotias University accepts JEE Main scores for B.Tech admissions, and some programs may also consider CUET as per the current admission policy. It's best to check the latest admission guidelines for your chosen course.
A
Beginner-Level 4
Answered 18 hours ago
UG students of JECRC University Alwar Campus get a maximum of 50% waiver based on CUET score. Students with 97% and above percentile in CUET get 50% waiver. Below is the detailed criteria:
| Percentile | Scholarship (Tuition Waiver) |
|---|---|
| 80-89.99 percentile | 15% waiver |
| 90-94.99 percentile | 25% waiver |
| 95-96.99 percentile | 30% waiver |
| 97 percentile & above | 50% waiver |
N
Guide-Level 15
Answered a week ago
If you have studied Agriculture in Class 12, then for B.Sc. (Hons.) Agriculture at BHU, the combination of Agriculture+Biology+Chemistry is the most relevant option.
A
Contributor-Level 10
Answered a week ago
Top B.Tech options accepting CUET or Class 12 merit include prominent central and state universities like Banaras Hindu University (BHU), Jamia Millia Islamia (JMI), and Amity University Noida.
S
Contributor-Level 7
Answered a week ago
Top B.Tech options accepting CUET or Class 12 merit include prominent central and state universities like Banaras Hindu University (BHU), Jamia Millia Islamia (JMI), and Amity University Noida.
S
Contributor-Level 7
Answered a week ago
No, CUET is not compulsory to get admission in Dr. D Y Patil Arts, Commerce and Science College in Pune. Admission into the UG and PG courses are offered based on merit in last qualifyiing exam.
R
Contributor-Level 10
Answered 2 weeks ago
No, CUET is not compulsory for admission in BA at Amity University Online. Candidates can apply directly through the Amity University Online admissions portal and do not need to take the CUET or any other entrance exam for this online degree.
R
Contributor-Level 10
Answered 2 weeks ago
CUET conducted by Christ University is a remotely proctored computer-based-test. It is conducted online. Test duration is 90 minutes. The test consists of 120 MCQs. The details are mentioned in the following table:
Section | Maximum Marks/Number of Questions |
|---|---|
Mathematics | 25 |
Reasoning | 20 |
Physics | 15 |
Chemistry | 15 |
English Language | 15 |
Data Analysis & Interpretation | 15 |
General Knowledge | 15 |
S
Contributor-Level 10
Answered 2 weeks ago
The minimum score needed by SC AI category for admission to this institute would depend on the course. For the BSc (Hons) in Computer Science programme, the Round 1 cutoff varied from 159.07 to 582.02. So, the minimum score required for this course was 159.07.
For the MA in English programme, the mi
N
Contributor-Level 10
Answered 2 weeks ago
Chanakya University provides a dedicated BTech scholarship for CUET high-achievers. If you score top marks in the national CUET exam, you receive fee waivers. This track rewards academic excellence outside standard state engineering tests. The exact waiver percentage follows the official institution
R
Contributor-Level 9
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
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