CBSE Class 12 Biology Sample Paper 2010 Set 01

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Official CBSE Practice Papers for Class 12 Biology

Review targeted exam resources with the CBSE Class 12 Biology Sample Paper 2010 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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Access the complete sample paper PDF for Class 12 Biology below. Regular practice with these targeted mock exams builds familiarity with expected question patterns and chapter weightage to help secure higher marks.

 Section - A

1. The turkey usually produces females for several generations. How is this possible?

2. The meiocyte of an onion plant contains 32 chromosomes. Workout the number of chromosomes found in its endosperm.

3. The gene I that controls the ABO blood grouping in human beings has three alleles IA, IB and i.

(a) How many different genotypes are likely to be present in the human population ?

(b) Also, how many phenotypes are possibly present ?

4. Pick out the ancestral line of Cycads from the list given below - Ferns, herbaceous lycopods, seed ferns, and horsetails.

5. Name the source of smack. Mention one way in which it affects the human body.

6. In plants, how is alien DNA introduced into the host cell ?

7. Mr. Galgotia eats curd / yoghurt. In this case, which trophic level will he occupy?

8. In the absence of the predators, which curve, a) or (b) would appropriately depict the prey population ? 

CBSE Class 12 Biology Sample Paper 2010 1

Section - B
 
9.
CBSE Class 12 Biology Sample Paper 2010 2
 
Identify the type of flower shown in A and B. Which out of the two will produce an assured seed set.
 
10. Fed up of a large family, a couple wanted to adopt a terminal method of contraception. Describe the process conducted by the doctor in either of the cases (male / female partner)
 
OR
A mother of a one year old daughter wanted to space her second child. Her doctor suggested CuT.Explain its contraceptive actions.
 
11. The human male and female bird are heterogametic while the human female and male bird are homogametic. Why are they called so?
 
12. What are interferons. Explain its role in providing immunity. Also name the kind of immunity provided by it.
 
13. What is allergy? Name the antibody responsible for it. Also mention two chemicals released from the mast cells during an allergic reaction.
 
14. Give reason -
(a) Bottled fruit juices bought from the market are clearer as compared to those made at home.
(b) Large holes are found in “Swiss cheese”.
 
15. In which parts of the body of the hosts do the following events in the life cycle of Plasmodium take place. Along with the body parts name the hosts too -
(i) Fetilisation
(ii) Development of gametocytes
(iii) Release of sporozoites


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Exam Preparation Sample Paper for Class 12 Biology CBSE Class 12 Biology Sample Paper 2010 Set 01

Download Sample Paper: CBSE Class 12 Biology Sample Paper 2010 Set 01 (Class 12 Biology)

Explore downloadable sample sets for Class 12 Biology. Utilizing the CBSE Class 12 Biology Sample Paper 2010 Set 01 allows learners to gauge exam readiness and master official CBSE assessment structures.

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Yes, CBSE Class 12 Biology Sample Paper 2010 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 Paper 2010 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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