NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions
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CBSE Class 12th Exam Date:17 Feb' 26 - 17 Feb' 26
NCERT Exemplar Class 12 Biology solutions deal with in different concepts and principles of genetics, biodiversity, reproductive health, and microbes. The whole biology NCERT Syllabus is vast and contains important topics which if dealt with well, will be helpful in higher studies and in entrance exams. The explanation covers various concepts and principles of genetics, biodiversity, reproductive health, and microbes.
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This Story also Contains
- Weightage of Class 12 Biology Chapters
- Important topic from NCERT Class 12 Biology
- Features and Benefits of NCERT Exemplar Class 12 Biology Solutions
- NCERT Exemplar Class 12 Biology Chapter Wise Links
Also, from the CBSE 12 Board Exam point of view, biology is a scoring subject if prepared well. Major concepts, diagrams, processes, and some new topics, such as biotechnology, should be given special attention. To make the chapters easy and learn how to solve the questions in the exam, understanding and observing the NCERT Solutions for Class 12 is necessary. We have a team of subject experts who have given thorough and detailed answers to each question mentioned in the main exercise.
Weightage of Class 12 Biology Chapters
The weightage given here is for the CBSE board exam. The mark distribution may vary slightly each year. Most of the questions are covered from Genetics and Reproduction. Questions from all the chapters will be included in the exam. So, for getting a good score, going through the NCERT Exemplar Class 12 Biology Solutions will be beneficial. The chapterwise distribution of marks is given in the following table:
| Chapter No. | Chapter Name | Weightage (Marks) |
|---|---|---|
| 1 | Reproduction in Organisms | 4 |
| 2 | Sexual Reproduction in Flowering Plants | 5 |
| 3 | Human Reproduction | 5 |
| 4 | Reproductive Health | 2 |
| 5 | Principles of Inheritance and Variation | 7 |
| 6 | Molecular Basis of Inheritance | 11 |
| 7 | Evolution | 4 |
| 8 | Human Health and Disease | 7 |
| 9 | Strategies for Enhancement in Food Production | 3 |
| 10 | Microbes in Human Welfare | 4 |
| 11 | Biotechnology: Principles and Processes | 6 |
| 12 | Biotechnology and Its Applications | 6 |
| 13 | Organisms and Populations | 4 |
| 14 | Ecosystem | 4 |
| 15 | Biodiversity and Conservation | 3 |
| 16 | Environmental Issues | 3 |
NEET Highest Scoring Chapters & Topics
Most Scoring concepts For NEET (Based On Previous Year Analysis)
Download EBookTotal Theory Marks: 70
Key Points:
Highest Weightage:
Molecular Basis of Inheritance (11 marks)
Human Health and Disease, Principles of Inheritance and Variation (7 marks each)
Moderate Weightage:
Sexual Reproduction in Flowering Plants, Human Reproduction, and Biotechnology chapters (5–6 marks each)
Lower Weightage:
Environmental Issues, Biodiversity, Reproductive Health, Strategies for Enhancement in Food Production (2–4 marks each)
Must Read NCERT Solution Subject-wise
Important topic from NCERT Class 12 Biology
These are some of the important topics students need to focus on:
Reproduction: In class 12th NCERT, the very initial chapters cover the reproduction-related chapter in both plants and animals. These chapters cover topics like reproductive systems in flowering plants, sexual and asexual reproduction, reproductive health in humans, etc.
Genetics: One of the major parts of biology is genetics as there are various principles, concepts, formulas, and laws to be understood under this. The syllabus covers genetic inheritance, genetic variations, DNA, RNA, replication, transcription, translation, amino acids, genetic flaws, and evolution. By understanding these topics, one will learn to create their base for higher studies in genetics.
Diseases and microbes: Learning about microbes, microbiology, their diversity, and their ecosystem can be highly helpful for those planning to pursue a future in medical science. The solutions cover topics like human health, various communicable diseases, food production using microbes, microbial processes that are useful for humans, etc.
Biotechnology: One of the most important and new topics that are covered in the NCERT exemplar class 12 Biology solutions is biotechnology. Biotechnology covers different aspects of combining biology with technology. It encapsulated topics like genetic recombination, genetically modified organisms, vaccines, biotechnology processes, etc.
Ecosystem and biodiversity: These solutions cover ecosystem and population-related topics. These various topics are merged like ecosystem, biodiversity, symbiotic and other relations, environment, bioconservation, etc.
Also, check the NCERT Exemplar subject-wise
Features and Benefits of NCERT Exemplar Class 12 Biology Solutions
Some of the features of solutions that make them highly useful to students are:
Easy solutions: While solving questions or while understanding the topic, if the solutions are difficult to follow, then it becomes difficult for a student to retain the topic. We make sure that the topics and questions are explained in the simplest possible way. This way, we do not miss any pointer formula, or crucial explanation and make sure that the student understands everything from the get-go.
Marking scheme: Our experts are well aware of the fact that CBSE marks the answers as per a pre-notified marking scheme. This means each and every step is given a certain mark when written in the answer sheet. Our experts keep that marking scheme in mind and then formulate the solutions. Thus, the students can find that if they solve in a very similar way, then the chances of scoring well and high in the exam become much easier.
Revise: Revising the topics well enough before attempting any exam is crucial. One can say that solving and understanding the solutions is also a great way to do some last-minute revision. Using these solutions, one will learn about question patterns, and also cover all the topics in the chapter shortly and crisply.
Also, check the NCERT Books and the NCERT Syllabus here
- NCERT Books Class 12 Biology
- NCERT Syllabus Class 12 Biology
- NCERT Books Class 12
- NCERT Syllabus Class 12
Also, from the perspective of the CBSE 12 Board Exam, biology is a scoring subject if well prepared. There are key concepts, diagrams, processes, and some new topics like Biotechnology that must be given special focus. To keep the chapters simple and also to understand how to solve the questions in the exam, understanding and observing the sllyabus are extremely important. We possess subject matter experts who have provided detailed answers to every question listed in the main exercise.
NCERT Exemplar Class 12 Biology Chapter Wise Links
Below are the Class 12 Biology chapter links :
CBSE Class 12th Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters
Frequently Asked Questions (FAQs)
Q: Are the solutions as per the CBSE marking scheme?
A:
Yes, each and every question is solved by our team of experts as per the marking scheme of the CBSE
Q: What elements are added to the NCERT exemplar class 12 Biology solutions?
A:
Our biology solutions have a proper explanation, diagrams, charts, comparison as required by the questions.
Q: Are these NCERT 12th Biology exemplar solutions helpful in the entrance exam?
A:
Yes, these solutions are a great way to revise the topics covered in the chapter, and this is helpful in last-minute revision.
Q: How to use these solutions for preparation?
A:
One can use these class 12 Biology NCERT exemplar solutions as a referring point while solving questions of one's own.
Q: What makes the solutions understanding?
A:
The simple way of answering and the easy language used by us will make it easier for the students to grasp the idea quickly.
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Questions related to CBSE Class 12th
On Question asked by student community
Have a question related to CBSE Class 12th ?
Hello,
The date of 12 exam is depends on which board you belongs to . You should check the exact date of your exam by visiting the official website of your respective board.
Hope this information is useful to you.
Hello,
Class 12 biology questions papers 2023-2025 are available on cbseacademic.nic.in , and other educational website. You can download PDFs of questions papers with solution for practice. For state boards, visit the official board site or trusted education portal.
Hope this information is useful to you.
Hello Pruthvi,
Taking a drop year to reappear for the Karnataka Common Entrance Test (KCET) is a well-defined process. As a repeater, you are fully eligible to take the exam again to improve your score and secure a better rank for admissions.
The main procedure involves submitting a new application for the KCET through the official Karnataka Examinations Authority (KEA) website when registrations open for the next academic session. You must pay the required application fee and complete all formalities just like any other candidate. A significant advantage for you is that you do not need to retake your 12th board exams. Your previously secured board marks in the qualifying subjects will be used again. Your new KCET rank will be calculated by combining these existing board marks with your new score from the KCET exam. Therefore, your entire focus during this year should be on preparing thoroughly for the KCET to achieve a higher score.
For more details about the KCET Exam preparation,
CLICK HERE.
I hope this answer helps you. If you have more queries, feel free to share your questions with us, and we will be happy to assist you.
Thank you, and I wish you all the best in your bright future.
Yes, you can switch from Science in Karnataka State Board to Commerce in CBSE for 12th. You will need a Transfer Certificate from your current school and meet the CBSE school’s admission requirements. Since you haven’t studied Commerce subjects like Accountancy, Economics, and Business Studies, you may need to catch up before or during 12th. Not all CBSE schools accept direct admission to 12th from another board, so some may ask you to join Class 11 first. Make sure to check the school’s rules and plan your subject preparation.
Hello
For the 12th CBSE Hindi Medium board exam, important questions usually come from core chapters like “Madhushala”, “Jhansi ki Rani”, and “Bharat ki Khoj”.
Questions often include essay writing, letter writing, and comprehension passages. Grammar topics like Tenses, Voice Change, and Direct-Indirect Speech are frequently asked.
Students should practice poetry questions on themes and meanings. Important questions also cover summary writing and translation from Hindi to English or vice versa.
Previous years’ question papers help identify commonly asked questions.
Focus on writing practice to improve handwriting and presentation. Time management during exams is key to answering all questions effectively.
Popular CBSE Class 12th Questions
A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is
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An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range
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A particle is projected at 600 to the horizontal with a kinetic energy . The kinetic energy at the highest point
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In the reaction,
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How many moles of magnesium phosphate, will contain 0.25 mole of oxygen atoms?
| Option 1)
0.02 |
Option 2)
3.125 × 10-2 |
| Option 3)
1.25 × 10-2 |
Option 4)
2.5 × 10-2 |
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