CBSE Class 12 Biology Sample Papers 2015 Set 01

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Class 12 Biology Solved Model Papers: CBSE Class 12 Biology Sample Papers 2015 Set 01

Review targeted exam resources with the CBSE Class 12 Biology Sample Papers 2015 Set 01. Built according to official CBSE standards for the 2026-27 academic year, these downloadable Class 12 Biology sample papers support effective revision and performance tracking.

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SECTION-A

1. State competitive exclusion principle (Gausse's principle).

2. 'Asexual reproduction does not produce the genetic variability'. Why?

3. Name the insecticidal protein which is produced by Bacillus thuringiensis.

4. Thorns of Bougainvillea and tendrils of Cucurbita are considered as homologous organs. Give reason.

5. Expand IUD and MTP.

6. Which category of adaptive immunity is provided by vaccination?

7. Why is male Drosophila fly referred to as heterogametic?

8. What is meant by juvenile phase of an organism?

SECTION-B

9. Observe the following pie-chart showing contribution of green house gases to global warming. Name the gases denoted as A and B.

CBSE Class 12 Biology Sample Papers 2015 (1) 1

10. Mention two strategies evolved by flowers to prevent self pollination.
 
11. What would happen to the successive trophic level in the pyramid of energy, if the rate of reproduction of phytoplankton slows down? Suggest two factors which could cause such a reduction is phytoplankton reproduction.
 
12. Frederick Griffith carried out his experiments on Diplococcus pnoumoniae using R-Strains and SStrains. What is meant by R-strains and S-Strains? What did he prove from these experiments?
 
13. List any four factors which may lead to loss of biodiversity.
 
14. Differentiate between convergent and divergent evolution.
 
15. What is single cell protein? What is the significance of such a protein?
 
16. Name the endocrine structure found in empty Graafian follicle. What role does it play during pregnancy?
 
17. What does S-Shaped pattern of population growth represent? How is Jshaped pattern different from it and why?
 
OR
What type of conservation measures, in situ or ex situ will help the larger number of species to survive? Explain.

 


Please refer to the link below for CBSE Class 12 Biology Sample Papers 2015 Set A

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Review model practice papers for Class 12 Biology. Working through the CBSE Class 12 Biology Sample Papers 2015 Set 01 under simulated test conditions at home ensures complete familiarity with upcoming school evaluations.

Why Practice Class 12 Biology Sample Papers?

  • Curriculum Insights: Clarify chapter-wise weightage rules and question trends across Class 12.
  • Gap Analysis: Check performance drops across sets to isolate specific Class 12 Biology topics needing extra attention.
  • Time Efficiency: Working through objective and descriptive problems builds critical pacing to finish exams comfortably.

Post-Practice Strategy for Class 12 Biology

  1. Self-Evaluation: Score your answers using official guidance to track your academic progress.
  2. Mistake Correction: Class 12 pupils must re-solve questions answered incorrectly to master the correct method.
  3. Continuous Practice: Take additional Biology sample modules online to maximize preparedness for CBSE evaluations.

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Are solutions provided for CBSE Class 12 Biology Sample Papers 2015 Set 01?

Yes, CBSE Class 12 Biology Sample Papers 2015 Set 01 comes with detailed, teacher-verified solutions. We have provided step-by-step answers for Biology to help students of Class 12 understand correct methodology and marking scheme.

How can practicing CBSE Class 12 Biology Sample Papers 2015 Set 01 help in exam preparation?

Practicing this Biology paper helps in time management and identifying important topics. For Class 12, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

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