CBSE Class 12 Bio Technology Compartment Question Paper 2020

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Access and download CBSE Class 12 Bio Technology Compartment Question Paper 2020, carefully designed as per the latest 2026-27 examination guidelines issued by CBSE, NCERT, and KVS. These Class 12 Bio Technology previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.

CBSE Class 12 Bio Technology Exam Question Papers

Try these Class 12 Bio Technology question papers to master the exam pattern and learn how marks are awarded. Practicing under exam conditions will make Class 12 students much faster and precise. Download the full CBSE Class 12 Bio Technology Compartment Question Paper 2020 to evaluate your skills today.

Class 12 Bio Technology Question Paper PDF Download

SECTION A
1. Why is agar added to the culture medium used for culturing microbes ?
 
2. Pectinase enzyme is needed to isolate single cells from a plant tissue. Why ?
OR
For genetic transformation vector, which two DNA sequences are cloned in the T-DNA region of Ti-plasmid in place of unwanted DNA sequences ?
 
3. Give an example of a disease caused by the absence of the enzyme adenosine deaminase.
OR
What is the cause of thalassemia ?
 
4. In recombinant DNA technology, what is an ‘insert’ ?
 
5. Which database retrieval tool carries information on taxonomic classification of an organism ?
OR
Name a single gene mutation in humans which follows Mendelian inheritance, having chromosome 7 as its genomic location.
 
6. Frozen animal cell culture should be thawed in a water-bath maintained at 370C, with moderate shaking. Why ?
 
7. What are the two limitations of the germplasm conservation through conventional methods ?
 
8. Polyethylene glycol is a
 
(A) Fusogenic chemical
 
(B) Callus stimulant
 
(C) Electrofusion stimulant
 
(D) Differentiation stimulant
 
9. Which one of the following restriction enzymes produces blunt ends in a DNA fragment ?
 
(A) Alu I
 
(B) Eco RI
 
(C) Bam HI
 
(D) Hind III
 
10. The study of full complement of proteins expressed by a genome is called
 
(A) Proteome
 
(B) Proteomics
 
(C) Genomics
 
(D) Protein analysis
 
11. Which of the following is a function of cryoprotective agents ?
 
(A) Long-term preservation of cultures
 
(B) Prevention of cell damage due to ice crystal formation
 
(C) Prevent formation of inclusion bodies
 
(D) To trap the liquid nitrogen
 
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Previous Year Question Papers: Class 12 Bio Technology

Exam preparation for Class 12 students requires solving the CBSE Class 12 Bio Technology Compartment Question Paper 2020 provided above. Easily download these past papers for Class 12 Bio Technology available in PDF format for the last 10 years. Regular drills on real past papers build absolute familiarity with question styles, helping you ace both descriptive prompts and MCQ tests.

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Consistent practice using the CBSE Class 12 Bio Technology Compartment Question Paper 2020 is a proven strategy to elevate your Class 12 Bio Technology performance. These documents clarify the official marking scheme and framework followed by the CBSE. Simulating real test conditions at home helps hone your time management abilities, ensuring you finish your Bio Technology paper comfortably within the official time limit.

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FAQs

Where can I download the official PDF for CBSE Class 12 Bio Technology Compartment Question Paper 2020?

The CBSE Class 12 Bio Technology Compartment Question Paper 2020 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 12 Bio Technology Compartment Question Paper 2020 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 12 Bio Technology Compartment Question Paper 2020 are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Bio Technology.

How does solving CBSE Class 12 Bio Technology Compartment Question Paper 2020 help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 12 Bio Technology Compartment Question Paper 2020 is important to understand repeat themes and question difficulty levels of Bio Technology. It helps Class 12 students to test their time management skills too.

Can I access CBSE Class 12 Bio Technology Compartment Question Paper 2020 in different languages?

Yes, where applicable, CBSE Class 12 Bio Technology Compartment Question Paper 2020 is available in both English and Hindi mediums. All students from Class 12 can access Bio Technology study material in their preferred language.

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No, all previous year question papers on StudiesToday, including CBSE Class 12 Bio Technology Compartment Question Paper 2020, are provided free of charge in mobile-friendly PDF.