Firstly you should ask this mentioning the chapter. Secondly there are no such deductions of concepts in Biology syllabus. The chapter and the portions in NEET 2021 are provided below:

• From class XI:

Diversity in Living World

Structural Organization in Animals and Plants

Cell Structure and Function

Plant Physiology

Human Physiology

From Class XII:

Reproduction

Genetics and Evolution

Biology and Human Welfare

Biotechnology and Its Applications

Ecology and Environment

For more details visit the link below:

https://medicine.careers360.com/articles/neet-syllabus#NEET-syllabus-for-Biology-2021

I hope this answer helps. All the very best for your future endeavors!