12th Class Biology Pairing Scheme 2025 – 2026 (Complete Guide for All Punjab Boards)

If you are a student of FSC Pre-Medical, Biology is the most important subject. To improve exam preparation, Punjab Textbook Board has released 12th Class Biology Pairing Scheme 2025 – 2026. This scheme is the same for all Punjab boards including Lahore, Faisalabad, Gujranwala, Sargodha, DG Khan, Multan, Bahawalpur, Sahiwal and Rawalpindi. In this article, you will get complete chapter wise marks distribution, short and long questions and important exam preparation tips.

Biology Paper Pattern 2025 – 2026

Part	Marks
MCQs (Objective)	17
Short Questions	48
Long Questions	20
Practical Paper	15
Total Marks	100

MCQs Chapter Wise Distribution

Chapter	MCQs
Chapter 1 – 4	5
Chapter 5 – 8	4
Chapter 9 – 12	4
Chapter 13 – 14	4
Total	17

Short Questions Distribution

Section	Total Questions	To be Attempted	Marks	Chapter Range
Section A	12	8	16	Unit 1–4
Section B	12	8	16	Unit 5–8
Section C	12	8	16	Unit 9–14

Long Questions Pairing Scheme

Question Number	Chapters	How many	To be Attempted	Marks
Q1	1 – 4	2	1 out of 2	10
Q2	5 – 8	2	1 out of 2	10
Q3	9 – 14	2	1 out of 2	10

Note: Each question has Part A and Part B. Both parts must be attempted.

Chapter Wise Important Topics

Chapter	Important Topics	Importance
Homeostasis	Kidney, Osmoregulation	Short + MCQ
Support & Movement	Joints, Disorders	MCQ
Coordination & Control	Nervous System, Hormones	Long Question Expected
Reproduction	Gametogenesis, Menstrual Cycle	Must
Growth & Development	Plant Hormones	MCQ
Chromosomes & DNA	DNA Replication	Long + Numerical Type
Evolution	Darwin & Lamarck Theory	Short
Ecosystem	Food Chain & Pyramid	Long
Biotechnology	Genetic Engineering	Expected
Immunity	Vaccines & Antibodies	Short
Man & Environment	Pollution	MCQ
Biotechnology & Its Applications	Cloning	Long Expected
Some Common Human Diseases	Viral & Bacterial Diseases	Theory
Bioinformatics	Data Analysis	MCQ

Additional Notes

• Make diagrams mandatory
• Write definitions clearly and completely
• Prepare difference-type questions
• Solve previous year papers

12th Class Biology Pairing Scheme 2025 – 2026 PDF Download

FAQs

1. Is this scheme for both the years 2025 and 2026?
   Yes, this Pairing Scheme is the same for both the sessions 2025 – 2026.
2. How many Long Questions are there?
   There are a total of 3 long questions, each containing 2 parts which are compulsory.
3. Are Practical Marks also included?
   Yes, Biology includes 15 marks for Practical.
4. Is there a big change in the Bio scheme this time?
   There have been minor changes in the distribution of marks but the chapter importance is almost the same.

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