Hii,

The Biology is one of the main subjects for science students.

The table gives you the details analysis of chapter wise marks distribution which helps in your preparation.

Exam Structure

For more information about the syllabus please check out the link mentioned below

https://school.careers360.com/articles/cbse-class-12-biology-syllabus

This will help you,

All the very best!!

Hello aspirant!
Hope you are doing well!
You'll be happy to know that Central Board of Secondary Education has released the reduced syllabus for Class 12 Biology.
There are a total of 5 units in the syllabus of Biology. The theory papers consist of 70 marks and practical exams will be of 30 marks. Check the complete syllabus below link.
https://school.careers360.com/articles/cbse-class-12-biology-syllabus
also you can check the mark allotted for each unit from the CBSE Class 12 Biology Syllabus 2020-21