Hello,

NEET entrance exam consists of 180 Objective type mcqs questions with 4 options and 1 correct answer for each correct answer 4 marks are awarded while 1 mark is deducted for each wrong answer attempted.

For NEET entrance exam revise NCERT biology books for 11th and 12th standard till you are clear with concepts and You can solve mcqs from any book (MTG fingertips mcq is also good).
Aim for 300+ in biology as it contains one liners for NCERT and is most scoring subject in NEET.
Also solve 5years previous NEET question papers as few mcqs are repetitve.
Hope this helps.