The UP Board Class 12 Biology 2026 question paper with solutions (Set 348 EK) 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 36 questions to be solved in 3 hours 15 minutes.
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UP Board Class 12 Biology 2026 (Set 348 EK) Questions with Solutions
Which of the following is a water pollinated plant?
Which of the following is an initiation codon?
Which of the following is needed in recombinant DNA technology?
Lichen is an example of which of the following type of population interactions?
Name any two plants in which multicarpellary syncarpous gynoecium is found.
Write the full form of ZIFT.
Name the gene which can exhibit multiple phenotypic expressions.
What is the length of DNA in a typical nucleosome?
Name the type of food chain which begins with dead organic matter.
What do you mean by Mendelian disorders? Give two examples of sex-linked Mendelian disorder.
Explain Frame shift mutation with an example.
What is trichoderma? Give one application of trichoderma as an effective biocontrol agent.
Write a note on photosynthetically active radiation.
Write a short note on over exploitation.
What is Placenta? Describe different functions of placenta in brief.
Describe various factors responsible for explosive population growth in India.
Explain test cross and back cross.
What is adaptive radiation? Describe it with the help of a suitable example.
Comment upon the following: Infectious disease.
Comment upon the following: Amoebiasis.
Briefly describe the structure and function of antibody molecule.
Describe the causes, detection and diagnosis of cancer in brief.
Discuss various measures for prevention and control of drug/ alcohol abuse.
Explain the nomenclature of restriction endonucleases. Add a note on its applications.
Briefly describe the different methods used to transfer the recombinant DNA into the host cell.
What are transgenic plants? Describe benefits of transgenic plants in brief.
What is trophic level? Comment upon the different types of trophic levels in an ecosystem.
Define spermatogenesis. Describe the process of spermatogenesis with the help of schematic diagram.
(OR) Write an explanatory note on: Medical termination of pregnancy.
(OR) Write an explanatory note on: Biotic and abiotic agents of pollination.
Describe the mechanism of sex determination in honey bees and birds.
(OR) Write an explanatory note on: Hardy-Weinberg principle.
(OR) Write an explanatory note on: Linkage.
Describe the decomposition cycle in a terrestrial ecosystem with the help of a diagram.
(OR) Write an explanatory note on: Productivity.
(OR) Write an explanatory note on: Consumers.
UP Board Class 12 Biology 2026 Exam Pattern and Marking Scheme Explained
UPMSP set this paper (Set 348 EK) with 9 compulsory questions, each split into several lettered sub-parts (a, b, c...), plus a final internal choice on the last three long-answer questions.
- Total questions: 4 one-mark MCQ sub-parts, 5 one-mark VSA sub-parts, and 18 two/three-mark short-answer sub-parts across four sections, plus 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 27 sub-parts (55 of the 70 marks, before the internal-choice questions), a few chapters clearly dominate.
- Human Health and Disease: 12 of 55 marks - the single biggest chapter
- Biotechnology: 7 of 55 marks
- Principles of Inheritance and Variation, and Ecosystem: 6 of 55 marks each
- Molecular Basis of Inheritance, and Organisms and Populations: 4 of 55 marks each
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 EK paper as a timed mock before you check the solutions.
- Attempt all sub-parts of all 9 main 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 Set 348 EK paper, and is there any choice?
Ans. The paper has 9 main questions worth 70 marks, most of them split into several lettered sub-parts (a, b, c...) that are all compulsory. The last 3 main 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 MCQ sub-parts, 5 one-mark VSA sub-parts, 18 two- and three-mark short-answer sub-parts, and 3 five-mark questions with internal choice.
Ques. Which topics had the highest weightage in UP Board Class 12 Biology 2026 Set 348 EK?
Ans. Based on this paper's actual questions, Human Health and Disease (12 of the first 55 marks) led, followed by Biotechnology (7 marks) and Principles of Inheritance and Variation plus Ecosystem (6 marks each). 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 EK from the table at the top of this page, for free.
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