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Free Practice Questions for BSEH SS Biology

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Key Facts: BSEH SS Biology Exam

3 hours

Typical BSEH Senior Secondary Biology theory exam duration

BSEH date-sheet logistics (code 865)

70 + 30

Typical theory + practical mark split for Class 12 Biology

BSEH Class 12 Biology syllabus structure

33%

Common Senior Secondary subject pass floor for BSEH theory electives

BSEH Senior Secondary notification practice

Code 865

Biology subject code on BSEH Senior Secondary date sheet

BSEH date sheet

English MCQ adaptation

This free local bank is not the official Senior Secondary paper format

OpenExamPrep practice policy

BSEH Senior Secondary Biology is a Class 12 public-exam theory elective of about 3 hours (date-sheet code 865; theory ~70 + practical ~30) with a 33% pass floor, covering reproduction through ecology — not a pure MCQ board paper. This free 2026 bank is an English MCQ study adaptation for NCERT/BSEH-focused Class 12 Biology concepts and calculations.

Sample BSEH SS Biology Practice Questions

Try these sample questions to review concepts for the BSEH SS Biology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In angiosperms, the mature male gametophyte is represented by the:
A.Pollen mother cell
B.Microspore mother cell
C.Germinated pollen grain with two male gametes
D.Tapetal cell
Explanation: A mature pollen grain germinates to form a pollen tube carrying two male gametes (from the generative cell) and a vegetative nucleus — that is the male gametophyte.
2The embryo sac of a typical flowering plant is usually:
A.8-nucleate and 7-celled
B.8-nucleate and 8-celled
C.7-nucleate and 7-celled
D.4-nucleate and 4-celled
Explanation: Polygonum-type embryo sac has 8 nuclei organised into 7 cells: egg apparatus (3), antipodals (3), and a central cell with two polar nuclei.
3Double fertilisation in angiosperms results in:
A.Zygote only
B.Endosperm only
C.Zygote and primary endosperm nucleus (triploid)
D.Two zygotes
Explanation: One male gamete fuses with the egg to form a diploid zygote; the other fuses with two polar nuclei to form a triploid primary endosperm nucleus (PEN).
4Which layer of the anther wall is nutritive for developing pollen grains?
A.Epidermis
B.Endothecium
C.Middle layers
D.Tapetum
Explanation: The innermost anther wall layer, tapetum, provides nutrition and materials (e.g., sporopollenin precursors) to developing microspores.
5Apomixis is best defined as:
A.Formation of seeds without fertilisation
B.Fusion of two male gametes
C.Self-pollination within a closed flower
D.Polyembryony only due to adventive embryos
Explanation: Apomixis produces seeds (and progeny) without fertilisation, preserving maternal genotype — useful in hybrid seed technology.
6In a typical dicot embryo, the embryonic root is called the:
A.Plumule
B.Radicle
C.Epicotyl
D.Coleoptile
Explanation: The radicle is the embryonic root; the plumule is the embryonic shoot.
7Which of the following promotes outbreeding in flowering plants?
A.Cleistogamy
B.Self-incompatibility
C.Homogamy only
D.Absence of pollinators
Explanation: Self-incompatibility prevents self-pollen from fertilising ovules of the same plant, favouring cross-pollination/outbreeding.
8Endosperm in angiosperms is generally:
A.Haploid
B.Diploid
C.Triploid
D.Tetraploid
Explanation: Primary endosperm nucleus forms by fusion of one male gamete (n) with two polar nuclei (n + n), giving 3n endosperm in most angiosperms.
9In humans, spermatogenesis occurs in the:
A.Epididymis
B.Seminal vesicles
C.Seminiferous tubules
D.Prostate gland
Explanation: Seminiferous tubules of the testes are the sites of spermatogenesis; epididymis is mainly for maturation and storage.
10The hormone primarily responsible for ovulation is a surge of:
A.FSH only
B.LH
C.Progesterone
D.Prolactin
Explanation: A mid-cycle LH surge triggers ovulation of the mature Graafian follicle.

About the BSEH SS Biology Exam

Haryana Senior Secondary Biology under BSEH covers Class 12 Biology aligned to the Board’s Senior Secondary syllabus and NCERT-style Class 12 Biology. Core units include sexual reproduction in flowering plants and humans, reproductive health, inheritance and molecular genetics, evolution, human health and diseases, microbes in human welfare, biotechnology principles and applications, and ecology (populations, ecosystems, biodiversity). Official assessment is a theory paper of about 3 hours (date-sheet code 865), typically paired with a practical component (70 + 30). This free local bank provides English four-option MCQs for revision and numerical practice; pair it with official syllabus PDFs and written/diagram practice via bseh.org.in.

Exam sponsor: Board of School Education Haryana (BSEH). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

BSEH Senior Secondary Biology is a Class 12 theory elective under the Senior Secondary Certificate Examination (date-sheet code 865). Official logistics describe about 3 hours of theory work, commonly with a 70-mark theory + 30-mark practical total of 100 (confirm the year’s circular). Syllabus is CBSE/NCERT Class 12 Biology-aligned: Unit VI Reproduction (16 marks), Unit VII Genetics and Evolution (20), Unit VIII Biology in Human Welfare (12), Unit IX Biotechnology (12), and Unit X Ecology (10). Hindi/English medium materials are typical; this practice bank is an English-language MCQ study adaptation. Confirm the current syllabus PDF and circulars on bseh.org.in.

Time Limit

3 hours

Passing Score

33%

Exam / Certification Fees

As notified by BSEH and paid through affiliated schools for regular and compartment/improvement sittings (no single fixed public subject fee for all categories).

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

~23% of this local bank

Reproduction (Unit VI)

Flowering plants, human reproduction, and reproductive health.

~29% of this local bank

Genetics and Evolution (Unit VII)

Mendelian genetics, molecular inheritance, and evolution.

~17% of this local bank

Biology in Human Welfare (Unit VIII)

Human health and diseases; microbes in human welfare.

~17% of this local bank

Biotechnology (Unit IX)

rDNA principles/processes and biotech applications.

~14% of this local bank

Ecology (Unit X)

Populations, ecosystems, and biodiversity conservation.

Preparing for the BSEH SS Biology Exam

What You Need to Know

  • Passing score: 33%
  • Assessment: BSEH Senior Secondary Biology is a Class 12 theory elective under the Senior Secondary Certificate Examination (date-sheet code 865). Official logistics describe about 3 hours of theory work, commonly with a 70-mark theory + 30-mark practical total of 100 (confirm the year’s circular). Syllabus is CBSE/NCERT Class 12 Biology-aligned: Unit VI Reproduction (16 marks), Unit VII Genetics and Evolution (20), Unit VIII Biology in Human Welfare (12), Unit IX Biotechnology (12), and Unit X Ecology (10). Hindi/English medium materials are typical; this practice bank is an English-language MCQ study adaptation. Confirm the current syllabus PDF and circulars on bseh.org.in.
  • Time limit: 3 hours
  • Exam / certification fees: As notified by BSEH and paid through affiliated schools for regular and compartment/improvement sittings (no single fixed public subject fee for all categories). Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

BSEH SS Biology: Suggested Study Strategy

1Redraw standard diagrams (embryo sac, T.S. of anther, sperm/ovum, DNA replication fork, lac operon outline, ecological pyramids) after each MCQ set.
2For genetics numericals, write genotype/phenotype tables and ratios before selecting options; check for incomplete dominance and sex linkage traps.
3Hardy–Weinberg: practice p² + 2pq + q² = 1 with allele frequency first, then genotype frequencies.
4Link biotech tools to purpose: restriction enzymes cut, ligase joins, vectors carry, PCR amplifies — common objective discriminators.
5Use current BSEH Class 12 Biology syllabus and date-sheet materials from bseh.org.in to allocate revision time among the five theory units and practicals.

Frequently Asked Questions

How is BSEH Senior Secondary Biology officially examined?

Biology is examined under the Haryana Senior Secondary Certificate Examination as a Class 12 theory elective with a practical component. Date-sheet materials list Biology as code 865 with about 3 hours of theory work; mark structure is commonly 70 theory + 30 practical. Confirm the year’s syllabus PDF, date sheet, and circulars on bseh.org.in.

Is this practice bank the same format as the official Senior Secondary Biology paper?

No. Official BSEH Class 12 Biology theory papers mix objective and subjective (short/long, diagram, reasoning) sections. This bank is an English-language multiple-choice study adaptation for concepts and numericals only — not an official translation, blueprint replica, or full written-paper simulation.

What syllabus does this bank follow?

It covers topics from BSEH Senior Secondary (Class 12) Biology / NCERT Class 12 Biology style scope: Unit VI Reproduction, Unit VII Genetics and Evolution, Unit VIII Biology in Human Welfare, Unit IX Biotechnology, and Unit X Ecology, using the official unit mark weights as a distribution guide for this bank.

What is the pass mark for BSEH Senior Secondary Biology?

BSEH Senior Secondary subject pass floor is commonly stated as 33% for theory electives. Always verify the current BSEH Senior Secondary notification for exact criteria for your sitting, including any separate practical requirements.

Where should I check official syllabus and date sheets?

Use the Board of School Education Haryana website at bseh.org.in for Class 12 syllabus catalog entries (including Biology), date sheets (code 865), and exam circulars.