Official CBSE Practice Papers for Class 12 Biology
Review targeted exam resources with the CBSE Class 12 Biology Sample Papers 2015 Set 04. 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.
Solved Model Papers for Biology
Navigate directly to the solved Biology model papers using the digital viewer below. Each practice set includes detailed solutions, allowing students to instantly cross-check their work and identify areas requiring further revision.
SECTION A
1. Fitness according to Darwin refers to reproductive fitness. Explain.
2. Name the hormones secrete by the human female during pregnancy.
3. How many types of glycoproteins that determine blood groups are found on the surface of human RBCs?
4. Why is lactose called the inducer of the lac operon?
5. How are the cells of tapetum different from cells of other layers?
6. What do the tassels in the corn cob represent?
7. Name any 4 human diseases caused by the absence of a protein.
8. Mention one function each of the follicular cells and corpus luteum.
SECTION B
9. Explain steps that ensure cross pollination in autogamous flowers.
10. A diploid organism is heterozygous for 4 loci; how many types of gametes can be produced? Show any 4 gametes.
11. Mention two points of difference between the zona pellucida and corona radiata.
12. State any four differences beteween spermatogenesis and oogenesis.
13. How do Hugo de Vries and Darwin differ on their views on evolution?
14. How does Saheli bring about its contraceptive action?
15. Why is cyclosporin taken after kidney transplant?
16. In a nucleus, the number of RNA NTPs is 10 times higher than DNA NTPs, yet only DNA nucleotides are added during replication of DNA. Why?
17. What are we referring to when we say simpler organisms and complex organisms?
18. Expand the following terms :
a) NACO b) MALT c) CMI d) RT
Please click the below link to access CBSE Class 12 Biology Sample Papers 2015 Set D
Free study material for Biology
Exam Preparation Sample Paper for Class 12 Biology CBSE Class 12 Biology Sample Papers 2015 Set 04
Download Sample Paper: CBSE Class 12 Biology Sample Papers 2015 Set 04 (Class 12 Biology)
Access structured sample papers for Class 12 Biology. Solving the CBSE Class 12 Biology Sample Papers 2015 Set 04 provided above helps students understand official exam blueprints and tackle anticipated question formats with confidence.
Why Practice Class 12 Biology Sample Papers?
- Original Practice Material: Access unique questions for Biology designed to challenge your understanding.
- Self-Assessment: Evaluate scores per set to pinpoint weak zones in Class 12 Biology.
- Exam Completion Skills: Routine problem sets train you to manage test duration efficiently without stress.
Post-Practice Strategy for Class 12 Biology
- Review Solutions: Evaluate your completed papers using expert-verified guidance inside our solution sets.
- Target Weaknesses: Class 12 students should analyze missed questions to rectify conceptual misunderstandings.
- Deep Revision: Re-read sections in the NCERT book for Class 12 Biology to clear doubts before solving items again.
FAQs
You can download the complete PDF for CBSE Class 12 Biology Sample Papers 2015 Set 04 for free from StudiesToday.com. Our resources for Class 12 Biology are updated for the latest academic session and follow the official exam pattern.
Yes, CBSE Class 12 Biology Sample Papers 2015 Set 04 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.
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.
Yes, all our study materials for Class 12 Biology are provided in a mobile-friendly PDF format. You can easily download CBSE Class 12 Biology Sample Papers 2015 Set 04 on your mobile device.