Hello student

hope you are doing well and safe. With reference to your query,  I would glad inform you that their are many books which will be benfeciial for gate exam 2022. Following are some of them:-

GATE LIFE SCIENCE MICROBIOLOGY FROM BUSHAN KUMAR

GATE LIFE SCIENCE biochemistry FROM BUSHAN KUMAR

GATE 2021 LIFE SCIENCES SOLVED PAPERS

GATE 2022 LIFE SCIENCE CHEMISTRY SOLVED PAPERS BY PRANJAL CHANDRA

Hope you found this answer informative. Best wishes for your future