Hello there,

Understanding and solving different question papers is one of the best practices for preparation. It gives you a proper understanding of the exam pattern, important topics to cover, and the marking scheme.

Here is the link attached from the official website of Careers360 which will provide you with the class 12th Biology  question papers. Hope it heps!

https://school.careers360.com/boards/cbse/cbse-previous-year-question-papers-class-12

thank you!