Class 12 biology important questions cbse board

Class 12 biology important questions

Comprehensive Guide to Important Questions for Class 12 Biology CBSE Exam

As you prepare for your Class 12 Biology CBSE exam, it is essential to be familiar with the important questions that are likely to appear in the exam. In this comprehensive guide, we will provide you with all the important questions for Class 12 Biology CBSE exam and help you to prepare for the exam more effectively.

Section 1: Overview of Class 12 Biology CBSE Exam

The Class 12 Biology CBSE exam is an important exam that assesses the understanding and knowledge of the students in the field of biology. The exam is divided into two parts: Theory and Practical. The theory exam is for 70 marks, while the practical exam is for 30 marks. The duration of the exam is 3 hours.

Section 2: Important Questions for Class 12 Biology CBSE Exam

We have compiled a list of important questions for Class 12 Biology CBSE exam based on the CBSE syllabus. The questions cover all the important topics that are likely to appear in the exam. The questions are divided into the following sections:

Section A: Reproduction

1. Explain the various stages of spermatogenesis.
2. Explain the menstrual cycle in human females.
3. Describe the process of fertilization in humans.
4. What is the role of hormones in the menstrual cycle?
5. Explain the differences between sexual and asexual reproduction.

Section B: Genetics and Evolution

1. What is genetic drift? Explain with an example.
2. Describe the process of transcription and translation.
3. What is genetic code? Explain the codon table.
4. What are the different types of mutations? Explain with examples.
5. Define the term natural selection. Explain with an example.

Section C: Biology and Human Welfare

1. Explain the causes, symptoms, and prevention of AIDS.
2. What are the different types of vaccines? Explain with examples.
3. Describe the structure and function of the kidney.
4. What is the role of pituitary gland in the endocrine system?
5. Explain the different types of diseases caused by malnutrition.

Section D: Biotechnology and its Applications

1. What is genetic engineering? Explain the process with an example.
2. What are the different types of bioreactors? Explain with examples.
3. Explain the applications of biotechnology in agriculture.
4. What is the Human Genome Project? Explain its significance.
5. Describe the process of PCR (Polymerase Chain Reaction).

Section E: Ecology and Environment

1. Explain the various biotic and abiotic factors that affect an ecosystem.
2. What is biomagnification? Explain with an example.
3. Define the term biodiversity. Why is it important to maintain biodiversity?
4. Describe the different types of forests found in India.
5. Explain the causes and effects of air pollution.

Class 12 Biology Important Questions

Conclusion

In this comprehensive guide, we have provided you with all the important questions for Class 12 Biology CBSE exam. These questions cover all the important topics that are likely to appear in the exam. We hope that this guide will help you to prepare for the exam more effectively.

Class 12 Biology Important Questions

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Class 12 Biology Important Questions

Class 12 biology important questions