MP Class 12 Biology Weightage 2026 Unit and Chapter-Wise Mark Distribution

MP Class 12 Biology Weightage 2026: MP Class 12 Biology theory paper includes 40% objective questions, 40% subjective questions, and 20% analytical questions, aligning with the NCERT rules. Among the high-weightage units, Unit 2: Genetics and Evolution will be carrying 18 marks, including Principles of Inheritance and Variation and Molecular Basis of Inheritance and Evolution. Generally long-answer questions come from Mendelian genetics, DNA replication, and evolutionary mechanisms. Unit 1: Reproduction is the second-highest-weighted unit, carrying 14 marks. You can also check MP Board Class 12 Biology Exam Pattern 2026 to get more details about marks distribution.
Other notable high-weightage units include Human Health and Disease from Unit 3, carrying 9 marks, and Ecosystem from Unit 5, carrying around 6-8 marks. You may find application-based questions from these sections. The MPBSE 12th Biology question paper will be held for 3 hours and will consist of objective questions, conceptual understanding, and diagram-based answers across five units. The practical evaluation will be based on hands-on skills, observation, and record-keeping. Prioritize experiments from Sections A and B of the syllabus, such as flower dissection and food tests, as they recur frequently. Continue reading the article below to know more on the MP Class 12 Biology Weightage 2026 Unit and Chapter-Wise Mark Distribution.
Also Check MP Board Class 12 Biology Syllabus 2026

MP Class 12 Biology Weightage 2026 Theory Exam

Focus on the high-weightage chapters, as these sections will have 60% coverage, as per the last few years' previous year question papers. The MP Board Class 12 Biology unit and chapter-wise weightage for the academic year 2025-26 have been tabulated below:

Unit	Chapters	Approximate Marks
Reproduction	Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health	14 ​
Genetics and Evolution	Principles of Inheritance, Molecular Basis of Inheritance, Evolution	18 ​
Biology and Human Welfare	Human Health and Disease, Microbes in Human Welfare, Strategies for Enhancement	14 ​
Biotechnology	Principles and Processes, Applications	10 ​
Ecology and Environment	Organisms and Populations, Ecosystem, Biodiversity, Environmental Issues	14

MP Class 12 Biology Weightage 2026 Practical Exam/Internal Assessment

The 30-mark practical exam will evaluate two experiments from Section A for 7 marks, one from Section B for 4 marks, slide preparation for 5 marks, spotting for 7 marks, and records/viva/project for 7 marks. Diagrams and accuracy in experiments will carry high weightage. MP Board Class 12 Biology practical exam 2026 carries 30 marks out of the total 100, evaluating hands-on skills, observation, and record-keeping alongside the 70-mark theory paper. Check out the MP Class 12 Biology Weightage 2026 for the practical exam from the table below:

Component	Marks	Description
Two Experiments (one major, one minor)	10-12	Performing procedures like transpiration or enzyme activity ​
Slide Preparation	4-5	Preparing and labeling temporary/permanent slides
Spotting	7-8	Identifying specimens, diagrams, or processes
Practical Record	4	Maintaining lab notebook with observations
Project/Investigatory	3	Simple project work
Viva Voce	5	Oral questions on experiments ​
Total	30	--

Also Check MP Board Class 12 Biology Model Paper 2026

MP Class 12 Biology Question Paper Blueprint 2026

The MP board 12th Biology question paper will have 43 questions in total. Section A will include 28 objective questions for 1 mark each (total 28 marks), covering MCQs, fill-in-the-blanks, true/false, match-the-following, and one-word answers. Section B will have 7 very short answer questions for 2 marks each. Section C will have 4 short answer questions (concept or diagram-based) for 3 marks each. Section D will contain 4 long answer questions (detailed explanations with diagrams) for 4 marks each. Go through the MP Class 12 Biology Question Paper Blueprint 2026 from below:

Section	Question Type	No. of Questions	Marks per Question	Total Marks
A	Objective (MCQ, etc.)	28	1	28
B	Very Short Answer	7	2	14
C	Short Answer	4	3	12
D	Long Answer	4	4	16
Total	--	43	--	70

Try to focus on the high weightage carrying units like Unit 2 (Genetics and Evolution), alongside balanced coverage of Units 1, 3, and 5 (14 marks each). You must complete the entire syllabus by now and solve the MPBSE 12th previous year question papers.