Read the CBSE Class 12 Biology 2025 Sample Paper Set 01 Solved below. Find downloadable Class 12 Biology sample papers complete with answers, built according to the 2026-27 assessment guidelines of CBSE, NCERT, and KVS. Reviewing these sets helps every Class 12 learner measure their readiness for upcoming tests.
CBSE Class 12 Biology Sample Question Papers
Want to know which chapters carry high marks? Working through our Class 12 Biology model papers helps you learn chapter weightage and expected test difficulty. Solving these guess papers enables Class 12 students to find weak spots and practice better time management. We also recommend checking our previous years' Class 12 Biology Question Papers for extra practice.
Class 12 Biology Model Paper PDF Download
SECTION A
Q. No. 1 to 12 are multiple choice questions. Only one of the choices is correct. Select and write the correct choice as well as the answer to these questions.
1 Which among the following came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy
(a) Lantana
(b) Eicchhornia
(c) Parthenium
(d) Chenopodium
Answer : c
2. Ectopic pregnancies are referred as-
(a) Pregnancies with genetic abnormalities
(b) Implantation of defective embryo in the uterus
(c) Implantation of embryo at site other than the uterus
(d) Pregnancies terminated due to hormonal imbalance
Answer : c
3 Which of the following statements indicates parallelism in genes and chromosomes?
(i) They occur in pairs
(ii) They segregate during gamete formation
(iii) They show linkage
(iv) Independent pairs segregate independently
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i), (ii) and (iii)
(d) (i), (ii) and (iv)
Answer : d
4 In E.coli, the lac operon gets switched on when
a) lactose is present and it binds to the repressor
b) repressor binds to operator
c) RNA polymerase binds to the operator
d) lactose is present and it binds to RNA polymerase
Answer : a
5 The separated bands of desired DNA are cut out from the agarose gel and extracted from gel piece is known as
a) southern blotting
b) western blotting
c) gel electrophoresis
d) elution
Answer : d
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Access and download the CBSE Class 12 Biology 2025 Sample Paper Set 01 Solved effortlessly from our platform to gear up for your upcoming school assessments. To achieve top scores, Class 12 students must understand the structural design used by educators. We advise practicing these current Biology sample papers to tackle expected question types. Save files in a convenient PDF format for offline revision, and attempt them under strict home exam conditions for best results.
Why Practice Class 12 Biology Model Papers?
- Exclusive Questions: Explore novel practice items for Biology designed to challenge your understanding.
- Syllabus Mapping: Learn chapter priorities and question styles prevalent in current Class 12 guidelines.
- Performance Review: Analyze test results to isolate difficult areas in Class 12 Biology for remedial study.
- Speed Enhancement: Solving mixed format questions for Class 12 Biology guarantees improved speed and timely paper completion.
How to Analyze Your Performance in CBSE Class 12 Biology 2025 Sample Paper Set 01 Solved
- Review Solutions: Evaluate your completed papers using teacher-prepared keys inside the Biology Sample Paper PDF.
- Target Weaknesses: Class 12 students should analyze missed questions to rectify conceptual misunderstandings.
- Textbook Reference: Consult the NCERT book for Class 12 Biology when stuck, then practice the concept fresh.
- Ongoing Practice: Take additional Biology sample sets on our platform to ensure full readiness for CBSE tests.
FAQs
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Yes, CBSE Class 12 Biology 2025 Sample Paper Set 01 Solved 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.
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