CBSE Prepares Students for Class 12 Biotechnology Exam on March 21, 2025
The Central Board of Secondary Education (CBSE) is gearing up for the highly anticipated Class 12 board exams for the academic year 2025, with the Biotechnology exam set to take place on March 21, 2025. As countless students prepare for this challenge, it’s vital to review critical concepts and sample questions that will help them excel. Students are encouraged to visit the official CBSE website to access sample papers, which serve as an invaluable resource in their exam preparation.
This article delves into some of the most important questions derived from CBSE sample papers for the Class 12 Biotechnology exam, ensuring that students grasp key topics effectively.
The What, Who, When, Where, Why, and How of the Upcoming CBSE Biotechnology Exam
Who: The examination is organized by the Central Board of Secondary Education (CBSE), a prominent education board in India recognized for setting educational standards at the national level.
What: The examination is specifically for the Biotechnology subject, which is a part of the Class 12 curriculum, contributing to students’ overall academic performance.
When: Scheduled for March 21, 2025, the exam date is drawing near, making it crucial for students to prepare thoroughly.
Where: The exam will take place in various examination centers across the country, adhering to the guidelines set forth by the CBSE.
Why: The Biotechnology subject encompasses vital scientific principles and applications that are increasingly relevant in today’s world, particularly in fields like medicine, agriculture, and environmental science. The knowledge gained from this subject is essential for students planning to pursue further studies in life sciences and related fields.
How: Students are encouraged to utilize the resources available on the official CBSE website, including sample papers and previous years’ question papers. This preparation will help them become familiar with the exam format and the types of questions they may face.
Key Sample Questions for Class 12 Biotechnology Students
As the examination approaches, let’s explore some important questions that students should focus on:
1. **Who invented the dideoxynucleotide chain termination method? Schematically explain the method.**
This question tests students’ understanding of a pivotal technique used in DNA sequencing, a foundational aspect of biotechnology.
2. **Why is the dye termination method considered better than the chain termination technique? (Any two reasons). Why is the autoradiogram read from bottom to top (anode to cathode)?**
Understanding the advancements in DNA sequencing methods is crucial, particularly when comparing traditional and modern techniques.
3. **Explain the basic steps with principles involved in obtaining a regenerated plant, starting from an explant. Suggest any two applications of plant tissue culture.**
Plant tissue culture is a critical topic in biotechnology and has significant applications in agriculture and horticulture.
4. **Illustrate how intergeneric somatic hybrids can be made. Provide an example. What are cybrids? How are edible vaccines advantageous over recombinant vaccines produced by bacterial fermentation?**
Questions focusing on hybridization and vaccine technology encourage students to delve deeper into genetic engineering.
5. **Calculate the m/z ratio of protein ions for a protein with a molecular weight of 10,000 that contains 4, 3, 2, and 1 charge. Draw the mass spectrum corresponding to the mentioned ions.**
This question relates to mass spectrometry, a technique commonly used in biotechnology for protein analysis.
6. **A doctor is prescribing a protein-rich diet to sportsmen to improve performance. What three parameters should the doctor consider while recommending these protein sources?**
Questions addressing practical applications of biotechnology in nutrition are essential for students looking to enter the healthcare field.
7. **In genetic engineering, selection is crucial. If you have ampicillin and tetracycline antibiotics, which selection technique could differentiate between recombinant and non-recombinant cells?**
This question highlights the importance of selection markers in genetic engineering processes.
8. **Which microbial cells have been extensively used for the functional expression of eukaryotic genes, and why?**
Understanding the role of microbial systems in biotechnology is key for students interested in genetic research.
9. **Illustrate the essential steps involved in raising a chimeric mouse using stem cell technology.**
Questions focusing on stem cell technology provide insight into advanced biotechnological applications.
10. **A eukaryotic polypeptide hormone gene was cloned and expressed in bacteria, but the purified protein failed to function. Suggest reasons for the protein’s inactivity.**
This question challenges students to think critically about gene expression systems and post-translational modifications.
11. **How does the charge relay system operate in chymotrypsin?**
A deep understanding of enzyme mechanisms is vital for students focusing on biochemistry and molecular biology.
Preparing for the CBSE Biotechnology Exam
With the exam date swiftly approaching, students are encouraged to focus their studies on these pivotal topics and questions. In addition to reviewing sample papers, here are some study strategies:
– **Group Study Sessions**: Collaborate with classmates to discuss complex topics, share insights, and quiz each other with potential exam questions.
– **Online Resources**: Utilize reputable online platforms for additional study material and practice tests. Websites like[Khan Academy](https://www.khanacademy.org/science/biology) and[Coursera](https://www.coursera.org) offer courses that can help strengthen understanding.
– **Practice Past Year Papers**: Solving past exam papers can increase familiarity with the question format and improve time management skills during the actual exam.
– **Seek Help from Teachers**: Do not hesitate to reach out to teachers for clarification on difficult concepts or to gain additional resources.
As a final note, students should remain calm and confident, knowing that thorough preparation will pave the way for success in their Biotechnology exam.
For more related content, you can explore articles on **[Genetic Engineering Techniques](https://www.example.com/genetic-engineering-techniques)** and **[Applications of Biotechnology in Medicine](https://www.example.com/applications-of-biotechnology)**.
As per the report by[CBSE official](https://www.cbse.gov.in), these preparations are essential for achieving a good score in the upcoming examination.
DISCLAIMER
We have taken every measure to ensure that the information in this article and on our social media platforms is accurate, verified, and obtained from reliable sources. For feedback or complaints, please contact us at [email protected].