The UP Board Class 12 Biology 2026 question paper with solutions (Set 348 EL) is available here for free download. UP Board Class 12 Biology 2026 was conducted by the Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP) on February 23, 2026, in the afternoon shift, as a 70-mark paper of 32 questions to be solved in 3 hours 15 minutes.
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UP Board Class 12 Biology 2026 (Set 348 EL) Questions with Solutions
Testosterone hormone is synthesized and secreted by:
The phenotypic ratio of classical Mendelian dihybrid cross is:
The enzyme that makes a cut at a specific position within the DNA is called:
Which of the following is an attribute characteristic of a population?
Name the type of pollination found in cleistogamous flowers. Give one example.
How many chromosomes are found in primary spermatocytes and secondary oocytes of a human being?
Write the two general laws of inheritance proposed by Mendel.
Name any two autosome linked recessive disorders.
Give an example of an ecosystem where the pyramid of biomass is inverted.
Name the two strands of the structural gene DNA of a transcription unit.
Explain two phenomena which lead to variation in DNA.
Name the pathogenic organisms of the following diseases: (i) Pneumonia (ii) Amoebiasis (iii) Ascariasis (iv) Filaria.
Why is the pyramid of energy never inverted? Explain.
What do you mean by detritus and detritivores?
With the help of a suitable diagram, describe the functions of the vegetative and generative cells of mature pollen grains.
Write a short note on polyembryony.
Define linkage. Explain the effect of linkage on inheritance of two genes.
Explain transfer RNA (tRNA) as an adaptor molecule.
Comment upon the following: (i) Addiction (ii) Autoimmune disease.
What are lymphocytes? Comment upon two special types of lymphocytes present in our body.
What is cancer? Mention its prevention and cure.
What is sewage? Describe the biological treatment of sewage in short.
Comment upon the following: (i) Cloning (ii) Transgenic plants.
Describe the method of separation and isolation of fragments generated on cutting of DNA by restriction endonuclease.
Explain the application of biotechnology in agriculture.
Describe the different types of ecological pyramids in brief.
Define oogenesis. Describe the process of oogenesis with a diagram.
Write explanatory notes on the following: (i) Sterilization (ii) Infertility.
Describe the technique and application of DNA fingerprinting.
Write notes on the following: (i) Chromosomal aberrations (ii) Pedigree analysis.
Describe the different population interactions with suitable examples.
Comment upon the following: (i) Biodiversity hotspots (ii) Productivity.
UP Board Class 12 Biology 2026 Exam Pattern and Marking Scheme Explained
UPMSP set this paper (Set 348 EL) as 32 compulsory questions of rising difficulty, with the last three questions offering an internal choice.
- Total questions: 4 one-mark MCQs, 5 one-mark short questions, 5 two-mark questions, 12 three-mark questions, and 3 five-mark questions with a choice (extracted as 6 rows)
- Total marks: 70
- Duration: 3 hours 15 minutes
- Question types: objective (MCQ), short-answer and diagram-based descriptive answers
- Internal choice: the final 3 questions (5 marks each, 15 marks total) each let you attempt one of two alternative questions
- Diagrams: UPMSP instructs students to illustrate answers with labelled diagrams wherever necessary
High-Weightage Topics in UP Board Class 12 Biology 2026 to Focus On First
Based on this paper's actual question distribution across the first 26 questions (55 of the 70 marks, before the internal-choice questions), a few chapters clearly dominate.
- Human Health and Disease: 11 of 55 marks - the single biggest chapter
- Applications of Biotechnology: 9 of 55 marks
- Ecosystem: 8 of 55 marks
- Sexual Reproduction in Flowering Plants, and Molecular Basis of Inheritance: 7 of 55 marks each
- Principles of Inheritance and Variation: 6 of 55 marks
The remaining 15 marks let you choose between long-answer questions across multiple chapters - practise as many as you can, since you only find out which alternative suits you better once you read the actual questions.
UP Board Class 12 Biology Question Paper Analysis Video
Source: ask board
How to Use the UP Board Biology Question Paper for Practice
Treat this Set 348 EL paper as a timed mock before you check the solutions.
- Attempt all 32 questions in 3 hours 15 minutes under exam conditions first
- For the final 3 choice questions, practise both alternatives, not just the one you'd normally pick
- Draw and label the relevant diagram for every question that calls for one - UPMSP awards marks for correctly labelled diagrams separately from the written answer
- Review each answer against the step-by-step solution PDF, not just the final answer
UP Board Class 12 Biology Student Reactions 2026
- Reactions to this paper were mixed - some students found the human physiology and biotechnology questions familiar from NCERT practice, while others found the diagram-based questions time-consuming to complete neatly under time pressure
UP Board Class 12 Biology 2026 Question Paper FAQs
Ques. When was the UP Board Class 12 Biology 2026 exam conducted?
Ans. UPMSP conducted the UP Board Class 12 Biology 2026 exam on February 23, 2026, in the afternoon shift from 2:00 PM to 5:15 PM, as part of the intermediate exams that ran from February 18 to March 12, 2026.
Ques. How many questions are there in the UP Board Class 12 Biology 2026 paper, and is there any choice?
Ans. The paper has 32 questions worth 70 marks. The last 3 questions (5 marks each) each give you a choice between two alternative questions - you only need to attempt one from each pair.
Ques. What is the marking scheme for UP Board Class 12 Biology 2026?
Ans. The paper carries 70 marks in 3 hours 15 minutes: 4 one-mark MCQs, 5 one-mark short questions, 5 two-mark questions, 12 three-mark questions, and 3 five-mark questions with internal choice.
Ques. Which topics had the highest weightage in UP Board Class 12 Biology 2026 Set 348 EL?
Ans. Based on this paper's actual questions, Human Health and Disease (11 of the first 55 marks) led, followed by Applications of Biotechnology (9 marks) and Ecosystem (8 marks). The final 15 marks let you choose between long-answer questions across multiple chapters.
Ques. Where can I download the UP Board Class 12 Biology 2026 question paper with solutions PDF for free?
Ans. You can download both the question paper and the full step-by-step solutions PDF for Set 348 EL from the table at the top of this page, for free.
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