NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions
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  • NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions

NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions

Irshad AnwarUpdated on 06 Jan 2026, 04:23 PM IST

The NCERT Exemplar class 12 biology deals with different concepts and principles of genetics, biodiversity, reproductive health, and microbes. The whole syllabus of biology is vast and contains important topics which, if studied 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. Practising the NCERT Exemplar class 12 solutions helps students prepare for their exams effectively without getting confused.

This Story also Contains

  1. Class 12 Biology NCERT Exemplar Chapter-Wise Links
  2. Weightage of Class 12 Biology Chapters
  3. Important Topics of NCERT Class 12 Biology
  4. Features and Benefits of NCERT Exemplar Class 12 Biology Solutions
NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions
NCERT Exemplar Class 12 Biology Solutions - Chapter Wise Problems with Solutions

Also, from the board's 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. A team of subject experts have given thorough and detailed answers to each question mentioned in the NCERT Exemplar class 12 biology solutions.

Weightage of Class 12 Biology Chapters

The weightage given here is for the board exam. The mark distribution may vary slightly each year. Most of the questions are covered in Genetics and Reproduction. Questions from all the chapters will be included in the exam. So, for getting a good score, going through the class 12 biology NCERT Exemplar will be beneficial. The chapterwise distribution of marks is given in the following table:

Chapter No.Chapter NameWeightage (Marks)
1Reproduction in Organisms4
2Sexual Reproduction in Flowering Plants5
3Human Reproduction5
4Reproductive Health2
5Principles of Inheritance and Variation7
6Molecular Basis of Inheritance11
7Evolution4
8Human Health and Disease7
9Strategies for Enhancement in Food Production3
10Microbes in Human Welfare4
11Biotechnology: Principles and Processes6
12Biotechnology and Its Applications6
13Organisms and Populations4
14Ecosystem4
15Biodiversity and Conservation3
16Environmental Issues3

Total Theory Marks: 70

Important 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

NEET Highest Scoring Chapters & Topics
Most Scoring concepts For NEET (Based On Previous Year Analysis)
Download EBook

Important Topics of 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 going through the NCERT Exemplar class 12 biology, 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 Exemplar class 12 biology 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 Exemplar class 12 biology 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 in the NCERT Exemplar class 12 biology. This way, we do not miss any pointer formula or important explanation, and make sure that the student understands everything in less time.

Marking scheme: Our experts are well aware of the fact that they mark 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 prepare 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 important. One can say that solving and understanding the Class 12 biology NCERT Exemplar 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

CBSE Class 12th Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters

Frequently Asked Questions (FAQs)

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. 

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.  

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