Dear Mohan, Biology section has 90 questions in NEET. Chapter wise weightage can be chacked at: https://medicine.careers360.com/articles/neet-chapter-wise-weightage-and-important-topics

Syllabus for Biology includes:

Diversity in Living world

Structural Organization in Animal and Plants

Cell Structure and Function

Plant Physiology

Human Physiology

Reproduction

Genetics and Evolution

Biology and Human Welfare

Biotechnology and its applications

Ecology and Environment

Biology Best Books:

NCERT Biology Class XI and Class XII textbooks

Biology Vol 1 and Vol 2 by Trueman

Objective Biology by Dinesh

Objective Botany by Ansari

Pradeep Guide on Biology

GR Bathla publications for Biology

Preparation tips:

Biology is the biggest section in NEET, comprising about half of the exam, and acing this subject can help you in scoring more in the exam. Human Physiology and Genetics have maximum weightage in NEET. It is advisable to practise questions of Genetics from previous year question papers, which will give you a thorough understanding of how the questions are being asked. Topics of Plant and Animal kingdom have a lot of portion to memorize. You can prepare these topics by making a comparative table for the sub-topics and studying it together. Plant physiology is also equally important and easy to score. For more tips, please visit our page at:

https://medicine.careers360.com/articles/how-prepare-for-neet-biology