CBSE Class 12 Biology Question Paper 2022 Set C Solved

Access and download CBSE Class 12 Biology Question Paper 2022 Set C Solved, carefully designed as per the latest 2025-26 examination guidelines issued by CBSE, NCERT, and KVS. These Class 12 Biology previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.

Solved Biology Question Papers for Class 12

Practicing these Class 12 Biology question papers is the best way to understand the actual exam pattern and marking scheme. By solving these papers under timed conditions, Class 12 students can improve their speed and accuracy. Download the full CBSE Class 12 Biology Question Paper 2022 Set C Solved to begin your self-assessment today.

Biology Class 12 Question Paper PDF with Solutions

SECTION - A
 
1. Pick out the ancestral line of Angiosperms from the list give below: Conifers, Seed ferns, Cycads, Ferns.
 
OR
 
Mention the type of evolution that has brought the similarity as seen in potato tuber and sweet potato.
 
2. Name the diagnostic test which confirms typhoid. 
 
3. Who was the first to construct an rDNA? 
 
4. Gause’s competitive exclusion principle, where does this apply? 
 
5. Why is secondary succession faster than primary succession?
 
OR
 
What is the importance of humus?
 
SECTION - B
 
6. What are the measures one has to take to prevent from contracting STDs?
 
OR
 
Explain the technique amniocentesis. How is this technique misused?
 
7. What is pedigree analysis, how is it useful? 
 
8. What is the role of histamine in inflammatory response? Name few drugs which reduce the symptoms of allergy.
 
9. Explain the adaptations that parasites have evolved.
 
OR
 
What is the importance of light for organisms? How do deep sea organisms get their energy?
 
10. In the picture provided, what is the relationship between (1) and (2) with respect to population interaction and between (3) and (4) with respect to trophic levels.
CBSE Class 12 Biology Question Paper 2022 Set C Solved 1
 
11.
CBSE Class 12 Biology Question Paper 2022 Set C Solved 2
a. Label the three tiers 1, 2, 3 given in the above age pyramid.
b. What type of population growth is represented by the above age pyramid?
 
12. Explain the function of reservoir in nutrient cycle. List the two types of nutrient cycles in nature. 2
 
SECTION - C
 
13. A woman has certain queries as listed below, before starting with contraceptive pills. Answer them.
(i)What do contraceptive pills contain and how do they act as contraceptives?
(ii)What schedule should be followed for taking these pills?
 
14. (a) Sickle celled anaemia in humans is a result of pointmutation. Explain.
(b) Write the genotypes of both the parents who have produced a sickle celled anaemic offspring.
 
OR
 
Morgan carried out several crosses in Drosophila and found F2-ratios deviated very significantly from the expected Mendelian ratio. Explain his findings with the help of an example.
 
15. The base sequence in one of the strands of DNAis TAGCATGAT
(i) Give the base sequence of its complementary strand.
(ii) How are these base pairs held together in a DNA molecule ?
(iii) Explain the base complementarity rules.Name the scientist who framed this rule.
 
16. Why is DNA molecule considered as a better hereditary material than RNA molecule ?
 
OR
 
Explain the post transcriptional modifications the hn-RNA undergoes in eukaryotic cell.
 
17. Describe the three different ways by which natural selection can affect the frequency of a heritable trait in a population.
 
18. Suggest and describe a technique through which a virus-free healthy plant can be obtained from a diseased sugarcane plant.
 
OR
 
Differentiate between inbreeding and outbreeding in cattle. State one advantage and one disadvantage of each one of them.
 
19. (a) Name the causative organisms for the following diseases:
(i) Elephantiasis
(ii) Ringworm
(iii) Amoebiasis
(b) How can public hygiene help control such diseases?
 
20. What is mutational breeding? Name a crop developed by this. How Parbhani Kranti have been developed?
 
21. a) How do DNA fragments migrate and resolve in a Gel electrophoresis?
b) How lane one is different from lane 2, 3 and 4 in the Gel electrophoresis set up?
c) How pure DNA fragments are made observable in the visible light?
 
CBSE Class 12 Biology Question Paper 2022 Set C Solved 3
 
22. What is a bioreactor used for? Name a commonly used bioreactor and any two of its components. 3
 
23. Which Ministry of Govt. of India had initiated Ganga Action Plan and Yamuna Action Plan? What
are the objectives of these plans?
 
24. Gene therapy is a better alternative to the other measures taken for ADA deficiency. Why is it a better alternative . What are the other methods used earlier? How can it be done?
 
SECTION - D
 
25. What is an operon ? Explain the functioning of lac operon when in an open state.
 
OR
 
A particular garden pea plant produces only violet flowers.
(a) Is it homozygous dominant for the trait or heterozygous?
(b) How would you ensure its genotype? Explain with the help of crosses.
 
26. With advancement in genetics, molecular biology and tissue culture, new traits have been incorporated into crop plants. Explain the main steps in breeding a new genetic variety of crop.
 
OR
 
i) The three microbes are listed below. Name the product produced by each one of them and mention their use.
(a) Aspergillus niger
(b) Trichoderma polysporum
(c) Monascus purpureus
ii) How is ‘Roquefort cheese’ ripened? How is it different from the other variety?
 
27. (a) Following are the responses of different animals to various abiotic factors. Describe each one with the help of an example.
(i) Regulate


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CBSE Class 12 Biology Question Paper 2022 Set C Solved

To understand the types of questions asked in past examinations, it is very important for Class 12 students to solve the CBSE Class 12 Biology Question Paper 2022 Set C Solved provided above. You can easily download these past papers for Class 12 Biology in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.

Importance of solving CBSE Class 12 Biology Question Paper 2022 Set C Solved

Regularly practicing CBSE Class 12 Biology Question Paper 2022 Set C Solved is the best way to improve your score in Class 12 Biology. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Biology paper within the allowed duration.

Benefits of downloading CBSE Class 12 Question Papers

Having the CBSE Class 12 Biology Question Paper 2022 Set C Solved in PDF format allows you to revise key concepts anywhere, even without an internet connection. These sets are a reliable tool to practice numerical problems and understand the correct approach to all types of answers. After solving the questions, you should compare your work with the solutions provided by our teachers. Along with these papers, students should always solve the Class 12 Biology Sample Papers and MCQ tests on studiestoday.com for a complete revision.

Where can I download the official PDF for CBSE Class 12 Biology Question Paper 2022 Set C Solved?

The CBSE Class 12 Biology Question Paper 2022 Set C Solved 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 Biology Question Paper 2022 Set C Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 12 Biology Question Paper 2022 Set C Solved are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Biology.

How does solving CBSE Class 12 Biology Question Paper 2022 Set C Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 12 Biology Question Paper 2022 Set C Solved is important to understand repeat themes and question difficulty levels of Biology. It helps Class 12 students to test their time management skills too.

Can I access CBSE Class 12 Biology Question Paper 2022 Set C Solved in different languages?

Yes, where applicable, CBSE Class 12 Biology Question Paper 2022 Set C Solved is available in both English and Hindi mediums. All students from Class 12 can access Biology study material in their preferred language.

Is there a charge to download the CBSE Class 12 Biology solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 12 Biology Question Paper 2022 Set C Solved, are provided free of charge in mobile-friendly PDF.