Each chapters and topics in UP Class 12th Biology exam has different weightage. Knowing about the weightage helps students prioritise topics accordingly. Check here UP Class 12th Biology Weightage 2026!
The UP Class 12th Biology Weightage 2026 plays an important role in helping you in preparing for final exams properly. Biology is one of the main subjects in class 12th, so smart planning becomes important. If you have clarity on unit-wise and chapter-wise marks distribution, you can understand which topics need more attention and which are to be revised with less effort. This approach will ultimately help you in preparing for the UP Class 12th Exam 2026, where knowing the weightage is important.
The UP Class 12th Biology Weightage 2026 clearly tells you the high-scoring units and low-scoring units. It helps you in prioritizing high-weightage units, revising them multiple times, and strengthening the concepts clearly. With the help of the weightage of each unit, you can revise the important units and chapters multiple times and score good marks.
This article will help in understanding the units and chapters that carry high weightage in UP Class 12th Biology subject. Go through this article and collect all the important details.
UP Class 12th Biology Exam Pattern 2026
The UP Class 12th Biology exam paper consists of a total of five sections. Each section has different types of questions. The number of questions also varies with the section. Each variety of question carries a different marking. Before you begin studying the Biology subject for UP Class 12th, check the exam pattern in detail. The following table shows the UP Class 12th Biology Exam Pattern 2026 in detail.
|
Sections |
Types of Questions |
Number of Questions |
Marks Allotted |
|
I |
MCQs |
1 with four subparts |
4 (Each question is of one mark) |
|
II |
Very Short |
1 with five subparts |
5 (Each question is of one mark) |
|
III |
Short Questions Type - I |
1 with three subparts |
10 (Each question is of two marks) |
|
IV |
Short Questions Type - II |
3 questions with a total of 12 subparts |
36 (Each question is of three marks) |
|
V |
Long Questions |
3 questions |
15 (Five marks each question) |
|
Total |
9 Questions |
70 marks |
|
UP Class 12th Biology Unit-Wise Weightage 2026
UP Class 12th Biology consists of five units. Each unit has a different weightage. The unit "Genetic and Evolution" has maximum weightage. Unit four has the least weightage. All the units are important and need focus. The table shown below describes the UP Class 12th Biology Weightage 2026 unit-wise.
|
Units |
Unit Name |
Marks Weightage |
|
I |
Reproduction |
14 |
|
II |
Genetics and Evolution |
18 |
|
III |
Biology and Human Welfare |
14 |
|
IV |
Biotechnology and Its Applications |
10 |
|
V |
Ecology and Environment |
14 |
|
Total |
70 marks |
|
Also Read: UP Class 12th Biology Syllabus 2026
UP Class 12th Biology Chapter-Wise Weightage 2026
In the UP Class 12th Biology Weightage 2026, all the units are subdivided into two to three chapters. Each chapter has a different weightage, and there are a total of 13 chapters. Chapter 9 has the highest weightage among all. A few chapters have equal weightage that you need to check. The chapter-wise weightage of UP Class 12th is shown in the table below.
|
Units |
Chapters |
Marks Weightage |
|
Reproduction |
Chapter 1: Sexual Reproduction in Flowering |
7 |
|
Chapter 2: Human Reproduction |
6 |
|
|
Chapter 3: Reproductive Health |
3 |
|
|
Genetics and Evolution |
Chapter 4: Principles of Inheritance and Variation |
8 |
|
Chapter 5: Molecular Basis of Inheritance |
8 |
|
|
Chapter 6: Evolution |
4 |
|
|
Biology and Human Welfare |
Chapter 7: Human Health and Diseases |
9 |
|
Chapter 8: Microbes in Human Welfare |
3 |
|
|
Biotechnology and its application |
Chapter 9: Biotechnology- Principles and Processes |
6 |
|
Chapter 12: Biotechnology and Its Applications |
6 |
|
|
Ecology and Environment |
Chapter 11: Organisms and Populations |
5 |
|
Chapter 12: Ecosystem |
3 |
|
|
Chapter 13: Biodiversity and Conservation |
2 |
|
|
Total |
70 marks |
|
Also Read: UP Class 12th Biology Preparation
UP Class 12th Biology Internal Assessment Weightage 2026
The UP Class 12th Biology Internal Assessment Weightage 2026 consists of the lab work, viva, and practical file. The total marks allotted to interna, assessment are 30. You can refer to the table below for more details.
|
Components |
Marks Allotted |
|
Lab Work + Viva + Practical File |
30 |
Also Read: UP Class 12th Biology Previous Year Question Papers 2026
Tips to Score High Using UP Class 12th Biology Weightage 2026
There are certain tips that you can follow to score high using the UP Class 12th Biology Weightage 2026. These tips are mentioned below.
- Firstly, check the weightage of the Biology subject properly from the official website of the UP Board.
- You need to pay more attention to units like "Genetics and Evolution" that carry maximum weightage. Three units carry the same weightage, which also requires your focus.
- The unit Biotechnology and Its Applications has the least weightage among all, but you shouldn't skip this unit as it is scoring and easy.
- Study well the units that carry high and equal weightage. Follow the resources that your teachers have told you to do so.
- Solve questions from the UP Class 12th Biology Previous Year Question Papers. This will help you improve your speed and score well on final exams.
-
Total UP Class 12th Biology exam is 70 marks. -
The exam paper consists of five distinct sections. -
Genetics and Evolution unit carries maximum weightage (18 marks). -
Biotechnology and Its Applications unit has the least weightage (10 marks).
