Hello,

The  important chapters in biology for neet exam:

In the 11th biology chapters weightage  as per 2020 neet

diversity of living organisms - 14%

structural organisation in plant and animal-5%

cell: structure and function-9%

plant physiology -6%

human physiology-20%

in case of the 12th biology chapter the weightage as follows:

reproduction-9%

genetics and evolution-18%

biology and human welfare-9%

biotechnology and its application-4%

ecology and environment -6%