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ISC Class 12 Biology Question Paper 2020

Last updated date: 26th Feb 2024
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ISC Biology Question Paper for Class 12 2020

We, at Vedantu, provide ISC Class 12 Biology question paper 2020 pdf to assist you in preparing for your upcoming 12th Board exam. Studying the 2020 question paper helps you understand the exam pattern set by ISC during this year. This, in turn, will help you to be more confident during exams. The Class 12 Board exam is one of the most crucial exams in a student’s lifetime. It is the most competitive school level exam. It is important to score well in ISC Class 12 Biology Board exam, not only to have a great academic record but to have a rewarding future.

Class 12th is a crucial stage in the life of the students. The ISC Class 12 syllabus contains several important topics that later form a crucial part of their higher education. Biology is an important subject that can help shape the career of students. Having a good hold on Biology as a subject will be of advantage to the students of Class 12. So, to help students in preparing well for the ISC Class 12 Biology exam,  Vedantu provides you with the ISC Class 12 Biology Question paper 2020 for practice.

Competitive Exams after 12th Science

ISC Class 12 Biology Question Paper

The student must also know about the marks for each question and section. Hence, the marks weightage of the ISC Syllabus for Class 12 Biology is provided as follows for the student’s reference.


The theory paper of Biology is of 70 marks consisting of 3 hours of time duration.

S. No.


Total Weightage



16 Marks


Genetics and Evolution

15 Marks


Biology and Human Welfare

14 Marks


Biotechnology and its Applications

10 Marks


Ecology and Environment

15 Marks


70 Marks


There will be an internal choice available for the students in two questions of 2 marks each, two questions of 3 marks each, and all the three questions of 5 marks each.

FAQs on ISC Class 12 Biology Question Paper 2020

1. Is solving ISC Class 12 Biology question paper 2020 useful?

Practising the ISC Class 12 Biology previous year’s question paper can be very useful in boosting the student’s preparation in multiple ways. 

  • It will give the students an idea of the examination pattern for ISC Biology Class 12. 

  • It will help the students to take part in a time-bound assessment to analyze their level of preparation and to determine the average time taken to solve a question. 

  • Solving the ISC Class 12 Biology Question Paper 2020 will help the students to build confidence and a stronghold on the subject.

Thus, after completing the syllabus the students are advised to practice the sample paper.

2. Does Vedantu provide a free download for the ISC Class 12 question paper 2020?

Yes, the students can download the ISC Class 12 Biology Question Paper 2020 with the answer PDF for free from Vedantu’s website or mobile app. The Indian Certificate of Secondary Education (I.S.C.) class 12 Biology exam paper 2020 is helpful for the students in multiple ways. The Students appearing for the exam in 2021 can check it for their reference. They can either download the paper in PDF format or have a preview of the papers. It is suggested for the students of class 12 ISC to take a full-length practice test before their ICSE final examination.

3. What are the exam preparation tips for ISC Class 12 Biology?

The students of Class 12 ISC are advised to take the following steps for better exam preparation and thus, score good marks. 

  1. The students are advised to get familiar with the pattern of the question paper by practising the previous year’s question papers.

  2. Students should study the basic concepts first and follow on to the syllabus further to have an idea of the topics.

  3. The candidates must be precise with the diagrams and terminologies that they will be using in the final examination of ISC Class 12 Biology.

  4. The students must try to practice and solve the previous year’s papers and sample papers for having a grip over their preparation.

  5. Finally, the students should revise well, especially the important topics to have them in the memory of the last moment.

4. What are the chapters in ISC Class 12 Biology?

The ISC Class 12 Biology has a syllabus that is useful for the students to get exposure to the chapters that they will be studying in detail for higher education. For this the list of chapters for the Class 12 ISC Biology has been provided as follows:

Chapter 1: Reproduction in Organisms

Chapter 9: Strategies for enhancement in food production

Chapter 2: Sexual reproduction in flowering plants

Chapter 10: Microbes in Human Welfare

Chapter 3: Human Reproduction

Chapter 11: Biotechnology and its applications

Chapter 4: Reproductive Health

Chapter 12: Organisms and Populations

Chapter 5: Principles of inheritance and variation

Chapter 13: Ecosystem

Chapter 6: Molecular Basis of Inheritance

Chapter 14: Biodiversity and its Conservation

Chapter 7: Evolution

Chapter 15: Environmental Issues

Chapter 8: Human Health and Diseases

5. Which book is the best for Biology class 12 ISC?

The ISC Class 12 book which is best for preparation is- A Textbook of Biology for Class 12 (English) by Sarita Aggarwal. A Textbook Of Biology For ISC Class 12 is a comprehensive book for the students of Class 12 studying in schools that are affiliated with the Council for the Indian School Certificate Examinations (CISCE). The book provides the students with all the chapters and topics covered in the syllabus of ISC Class 12 and helps in better performance by the students as this will help them get an insight into the concepts.