The UP Board Class 12 Biology 2026 question paper with solutions (Set 348 EH) 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 EH) Questions with Solutions
Pollen grains are formed in which organ of the flower?
The process of fertilization occurs in which part of the female reproductive system?
How many contrasting characters were included by Mendel in his experiment?
Which nitrogenous base is not present in DNA?
Two nitrogenous bases are linked by which bond?
Write one example of bio-fertilizer.
Write the complete form of the abbreviation PCR.
Write the name of any one project being run to save rivers from pollution.
What is a green plant called in the terminology of an ecosystem?
Define detritivore with an example.
Write a brief description of a bioreactor.
Define somatic hybridisation.
Name any two fungal species which are used in the production of antibiotics.
Define cancer.
What do you understand by intra-uterine insemination?
Describe the functions of a promoter.
What is DNA fingerprinting? What is its importance in human life?
What is colostrum? Highlight its usefulness.
Draw the diagram of the male reproductive system.
Explain hibernation with an example.
Which test confirms typhoid fever? Describe its symptoms.
Draw a labelled diagram of a dehisced anther.
Give a brief description of the decomposition cycle with a diagram.
Write a short note on chromosomal disorders.
Describe the properties of genetic material.
Write a note on the chromosomal theory of inheritance.
Why are transgenic animals produced? Highlight the reasons.
Write explanatory notes on the following: (i) Transgenic plants (ii) Transfer of recombinant DNA into host cells.
Describe the structure of an ecosystem in detail.
What is productivity? What is its importance in an ecosystem?
Describe the life-cycle of Plasmodium with a diagram.
Write an essay on the importance of microbes in household products.
UP Board Class 12 Biology 2026 Exam Pattern and Marking Scheme Explained
UPMSP set this paper (Set 348 EH) 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.
- Molecular Basis of Inheritance: 8 of 55 marks - the single biggest chapter
- Principles of Inheritance and Variation: 7 of 55 marks
- Ecosystem: 6 of 55 marks
- Human Health and Disease: 5 of 55 marks
- Sexual Reproduction in Flowering Plants, Human Reproduction, and Molecular Biology Techniques: 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: Apex Education Group
How to Use the UP Board Biology Question Paper for Practice
Treat this Set 348 EH 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 molecular biology and inheritance 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 EH?
Ans. Based on this paper's actual questions, Molecular Basis of Inheritance (8 of the first 55 marks) led, followed by Principles of Inheritance and Variation (7 marks) and Ecosystem (6 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 EH from the table at the top of this page, for free.
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