HP Board Class 12 Biology Model Paper 2024-2025: Download FREE PDF

Nov 28, 2024, 11:51 IST

Class 12 Biology Model Paper HP Board 2025: In this article, students will get the newly released HP Board Class 12 Biology model paper also known as HP Board Class 12 Biology sample paper 2025.

Get direct link to download Class 12 Biology Model paper for HP Board

HPBOSE HP Board Class 12th Biology Model Paper 2025: The Himachal Pradesh Board of School Education (HPBOSE) has released model question papers for the academic year 2024–25, following the announcement of the updated syllabus. These sample papers, designed for Classes 3 to 12, are available on the official HPBOSE website and come without solutions to encourage independent learning. Students are advised to practice with guidance from teachers for effective preparation.

For Class 12 Biology, the HP Board model paper provides a clear understanding of the question pattern and types of questions expected in the exams. Practicing this model paper can help students improve their performance and boost their confidence. You can download the HPBOSE Class 12 Biology Model Question Paper from the provided link to begin your practice.

HP Board Class 12th Biology Model Paper General Guidelines

All questions are compulsory.
The question paper consists of four sections: A, B, C, and D.
Section A contains 12 multiple-choice questions of 1 mark each.
Section B contains 10 very short answer questions of 2 marks each.
Section C contains 6 short answer questions of 3 marks each.
Section D contains 2 long answer questions of 5 marks each.
Draw neat and labelled diagrams wherever necessary.

HP Board Class 12th Biology Model Paper 2025

The latest Himachal Board Biology model papers for Class 12 are given here which is essential for students to understand the exam pattern and mark distribution. Students who solve sample papers tend to get better marks in exams.

SECTION A: Multiple Choice Questions

1.A person accidentally cuts his finger with a rusty nail. Within hours, the area becomes red,

swollen, and warm. Which component of the innate immune system is primarily responsible for these signs?

A) Antibodies

B) Memory T cells

C) Inflammatory response

D) Plasma cell

2. What is the role of reverse transcriptase in a retrovirus?

(a) It synthesises proteins.

(b) It copies DNA to RNA.

(d) It replicates RNA.

3. hCG, hPL and relaxin are produced in women. The production of these hormones takes place

(a) at the time of puberty

(b) Only during pregnancy

(d) at the time of menopause

4.For a long time, it was believed that life came out of decaying and rotting matter like straw,

mud, etc. This was the theory of

(a) catastrophism

(b) spontaneous generation

(d) chemogeny

5. If a plant species has 12 chromosomes (2n=12), how many chromosomes will a pollen grain

have?

(a) 6

(b)12

(d) 3

6. If a red-flowered plant (RR) is crossed with a white-flowered plant (WW) under incomplete

dominance, what will be the phenotype of the offspring (RW)?

A) Red

B) White

C) Pink

D) Red and white spotted

7. The lac operon is an example of:

(a) Positive gene regulation

(b) Repressible from Negative

(d) Inducible gene expression

8. From a Sewage treatment plant, three water Samples, the A, B and C are tested for BOD Value and the recorded values of BOD are 6mg/L, 400mg/L and 20 mg/L respectively. What is correct

about these samples ?.

a) Sample A is taken from Untreated sewage

b) Sample B belong to secondary effluent of sewage

c) Sample C is taken from Primary effluent -

d) Sample B is collected from untreated sewage

9. Which of the following enzymes is responsible for the unwinding of DNA?

(a) DNA polymerase

(b) DNA ligase

(d) RNA polymerase

10. The diagram shows a pyramid of biomass.

A sharp decrease is seen in biomass at higher trophic the correct option for the levels of the ecosystem.

	1	2
a	Carnivore	Herbivore
b	Producers	Herbivore
c	Herbivore	Producers
d	Producers	Carnivor

Question Nos. 11 & 12 consist of two statements- Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below

(a) Both Assertion and Reason are true and Reason is the correct explanation of assertion

(b) Both Assertion and Reason are true, but Reason is not the correct explanation of assertion

11. Assertion (a): AUG acts as a start codon for the nucleotide sequence.

Reason (B): AUG codes for methionine and starts the process.

12. Assertion (A) keystones species are not relevant to biodiversity conservation.

Reason (R) keystone species have a significant impact on community structure and characteristics.

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To get the further questions of Sections B, C, and D, click on the link below. The link comprises a complete PDF of the HP Biology Class 12 model paper 2024-25.

Download HP Board Class 12 Biology Model Paper 2025 PDF

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