CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026

Q: How many questions are there in the CBSE Class 12 Biology Compartment 2026 paper (Set 2 - 57/7/2)?

The paper has 33 questions in five sections (A to E) and all of them are compulsory.

Q: How much time is given for the CBSE Class 12 Biology Compartment 2026 paper?

The paper is of 3 hours (10:30 AM to 1:30 PM). The question paper is distributed at 10:15 AM and candidates get 15 minutes to read it before they start writing.

CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026 is available for download here. CBSE conducted the Class 12 Biology Compartment (supplementary) examination on July 28, 2026, from 10:30 AM to 1:30 PM. The Biology paper is of 70 marks and the time allowed is 3 hours. This paper carries the Q.P. code 57/7/2 and is of Set 2. The question paper was handed out at 10:15 AM, and the first 15 minutes were given for reading it.

The paper has 33 questions in five sections, A to E, and all questions are compulsory. Section A has 16 multiple choice questions of 1 mark each, Section B has 5 very short answer questions of 2 marks each, Section C has 7 short answer questions of 3 marks each, Section D has 2 case-based questions of 4 marks each and Section E has 3 long answer questions of 5 marks each. There is no overall choice, but an internal choice is given in Sections B, D and E. Neat and properly labelled diagrams should be drawn wherever necessary.

CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026 PDF

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CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Exam Pattern and Marking Scheme

Section	Questions	Question Type	Marks per Question	Marks
A	Q1 - Q16	Multiple choice questions	1	16
B	Q17 - Q21	Very short answer type	2	10
C	Q22 - Q28	Short answer type	3	21
D	Q29 - Q30	Case-based questions	4	8
E	Q31 - Q33	Long answer type	5	15
Total	33 questions			70

CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Question Paper FAQs

Ques. How many questions are there in the CBSE Class 12 Biology Compartment 2026 paper (Set 2 - 57/7/2)?

Ans. The paper has 33 questions in five sections (A to E) and all of them are compulsory.

Ques. How are the marks divided in the Biology Compartment 2026 paper?

Ans. Section A carries 16 marks, Section B 10 marks, Section C 21 marks, Section D 8 marks and Section E 15 marks, for a total of 70 marks.

Ques. Is there any internal choice in the paper?

Ans. There is no overall choice. An internal choice is given in Sections B, D and E, and a candidate writes only one of the alternatives.

Ques. Where can I download the solutions of this paper?

Ans. The table above has the Collegedunia PDF of this paper with detailed solutions.

Ques. How much time is given for the CBSE Class 12 Biology Compartment 2026 paper?

Ans. The paper is of 3 hours (10:30 AM to 1:30 PM). The question paper is distributed at 10:15 AM and candidates get 15 minutes to read it before they start writing.

Ques. When was the CBSE Class 12 Biology Compartment 2026 exam held?

Ans. The Class 12 compartment (supplementary) paper of Biology was held on July 28, 2026.

Ques. Where can I get the official CBSE Class 12 Biology Compartment question paper?

Ans. The official question papers are published on the CBSE website, cbse.gov.in.

CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026 PDF

CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026 PDF

CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Exam Pattern and Marking Scheme

CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Question Paper FAQs

1.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

2.
How does a chromosomal disorder differ from a Mendelian disorder ? Write one example for each.

3.
Study the given chart showing evolution of plants. Answer the following questions :

4.
Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.
Briefly explain the events of fertilisation and implantation in an adult human female.

7.
Draw the structure of an antibody molecule and label any four of its parts.

8.
(I) Write the scientific names of the two species of filarial worms causing filariasis.
(II) How do they affect the body of infected persons ?
(III) How does the disease spread ?

9.
The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

10.
Mention the source and the functions of the above mentioned hormones.

11.
Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems.
Reason (R): They are effective bio-control agents of several plant pathogens.

12.
Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

13.
Differentiate between active and passive immunity. Write any three differences.

14.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

15.
Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

Comments

dOGVmW

CBSE Class 12 Biology Compartment Set 2 - (57/7/2) Question Paper 2026 PDF

CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Exam Pattern and Marking Scheme

CBSE Class 12 Biology Compartment 2026 Set 2 - (57/7/2) Question Paper FAQs

1.Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

2.How does a chromosomal disorder differ from a Mendelian disorder ? Write one example for each.

3.Study the given chart showing evolution of plants. Answer the following questions :

4.Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.Briefly explain the events of fertilisation and implantation in an adult human female.

7.Draw the structure of an antibody molecule and label any four of its parts.

8.(I) Write the scientific names of the two species of filarial worms causing filariasis. (II) How do they affect the body of infected persons ? (III) How does the disease spread ?

9.The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

10.Mention the source and the functions of the above mentioned hormones.

11.Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems. Reason (R): They are effective bio-control agents of several plant pathogens.

12.Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

13.Differentiate between active and passive immunity. Write any three differences.

14.Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

15.Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

Comments

dOGVmW

1.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

2.
How does a chromosomal disorder differ from a Mendelian disorder ? Write one example for each.

3.
Study the given chart showing evolution of plants. Answer the following questions :

4.
Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.
Briefly explain the events of fertilisation and implantation in an adult human female.

7.
Draw the structure of an antibody molecule and label any four of its parts.

8.
(I) Write the scientific names of the two species of filarial worms causing filariasis.
(II) How do they affect the body of infected persons ?
(III) How does the disease spread ?

9.
The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

10.
Mention the source and the functions of the above mentioned hormones.

11.
Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems.
Reason (R): They are effective bio-control agents of several plant pathogens.

12.
Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

13.
Differentiate between active and passive immunity. Write any three differences.

14.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

15.
Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.