Explore: All CBSE Class 12 chapters · CBSE Class 12 Biology PYQs · CBSE Class 12 hub · Syllabus & pattern · Class 12 2026
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Biotechnology and its Applications PYQs (previous year questions) for CBSE Class 12: Biotechnology and its Applications (Biology) had 23 questions across the 50 official CBSE Class 12 papers we tagged (2016–2026), and appeared in 10 of them. Asked in 10 of 10 years. The concepts asked in the most papers: Gene Therapy, Bt Crops, RNA Interference.
Year-wise question count
Asked in 10 of 10 years.
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Gene Therapy | 4 | 4 | 2025, 2023, 2019, 2016 |
| Bt Crops | 3 | 3 | 2026, 2022, 2017 |
| Genetically Engineered Insulin | 3 | 3 | 2020, 2018, 2017 |
| RNA Interference | 3 | 3 | 2025, 2020, 2018 |
| Transgenic Animals | 3 | 2 | 2026, 2024 |
| Biopiracy | 2 | 2 | 2023, 2016 |
| Biosafety | 2 | 2 | 2025, 2024 |
| GM Crops | 2 | 2 | 2024, 2019 |
| Stem Cells | 1 | 1 | 2023 |
How to practise Biotechnology and its Applications PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Biotechnology and its Applications questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary, with a link to the official PDF.
CBSE Class 122026
CBSE Class 122025
CBSE Class 122024
- Q.9 (Biology (57/1/1)) · MCQ · Transgenic Animals: Transgenic animal used to test polio vaccine safety PDF
- Q.11 (Biology (57/1/1)) · MCQ · GM Crops: Improved trait of Golden rice PDF
- Q.16 (Biology (57/1/1)) · Assertion-Reason · Biosafety: Role of GEAC and ecological effects of GM organisms PDF
- Q.27 (Biology (57/1/1)) · Short answer · Transgenic Animals: Define transgenic animals; first transgenic cow and its value PDF
CBSE Class 122023
- Q.12 (Biology (57/1/1)) · MCQ · Biopiracy: Who challenged the turmeric wound-healing patent PDF
- Q.13 (Biology (57/1/1)) · Assertion-Reason · Gene Therapy: Periodic lymphocyte infusion in ADA gene therapy and lymphocyte lifespan PDF
- Q.24 (Biology (57/1/1)) · Short answer · Stem Cells: Features, sources and medical uses of stem cells PDF
CBSE Class 122022
- Q.13 (Biology Term 2 (57/1/1)) · Case-based · Bt Crops: Interpret leaf damage by three corn borers on Bt and non-Bt corn PDF
CBSE Class 122020
CBSE Class 122019
CBSE Class 122018
CBSE Class 122017
CBSE Class 122016
Other Biology chapters
- Reproduction in Organisms PYQs
- Sexual Reproduction in Flowering Plants PYQs
- Human Reproduction PYQs
- Reproductive Health PYQs
- Principles of Inheritance and Variation PYQs
- Molecular Basis of Inheritance PYQs
- Evolution PYQs
- Human Health and Disease PYQs
- Strategies for Enhancement in Food Production PYQs
- Microbes in Human Welfare PYQs
- Biotechnology: Principles and Processes PYQs
- Organisms and Populations PYQs
- Ecosystem PYQs
- Biodiversity and Conservation PYQs
- Environmental Issues PYQs
FAQ
How many Biotechnology and its Applications questions come in CBSE Class 12?
In the official papers we tagged: 2 in 2026, 3 in 2025, 4 in 2024, 3 in 2023, 1 in 2022, 2 in 2020, 2 in 2019, 2 in 2018, 2 in 2017 and 2 in 2016. That is 23 questions in all, about 8% of Biology.
Which Biotechnology and its Applications topics repeat in CBSE Class 12?
Asked in the most papers: Gene Therapy, Bt Crops, RNA Interference. The concept table lists every one with its count.
Are these official CBSE Class 12 questions?
Yes. Every question is from an official CBSE Class 12 paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.