Firstly everything is important but there are a few topics more important
11th
1) plant physiology
2)cell biology
3)morphology especially examples
4)plant and animal kingdom
12th
1) biotechnology
2)genetics
3)ecology
these r few scoring topics but to achieve gud Mark's u shall focus on each and every topic coz biology is itself a scoring subject in NEET.
"hope it'll help"

Extra Edge Topics for NEET Biology

To score maximum marks in NEET biology, you need to have a good understanding of the NCERT syllabus. However, there are some additional topics, which can give you an extra edge while solving questions in NEET. Here are some of the topics that you can focus on to get a better score in NEET biology:

1. Human Physiology: This is one of the most important topics in NEET biology. You can focus on the following sub-topics to score maximum marks:

- Digestive system and associated disorders
- Respiratory system and associated disorders
- Cardiovascular system and associated disorders
- Excretory system and associated disorders
- Endocrine system and associated disorders

2. Plant Physiology: This topic also carries a significant weightage in NEET biology. You can focus on the following sub-topics to score maximum marks:

- Photosynthesis and respiration
- Plant growth and development
- Mineral nutrition and transport

3. Genetics and Evolution: This topic is also important for NEET biology. You can focus on the following sub-topics to score maximum marks:

- Mendelian genetics and inheritance patterns
- Chromosomal basis of inheritance
- DNA replication, transcription, and translation
- Evolution and its evidences

4. Ecology and Environment: This topic is also important for NEET biology. You can focus on the following sub-topics to score maximum marks:

- Ecosystem and its components
- Biodiversity and conservation
- Environmental issues and their management

In addition to these topics, you can also focus on the following to get an extra edge in NEET biology:

- Cell biology and cell division
- Biotechnology and its applications
- Human health and diseases

Conclusion

Focusing on the above-mentioned topics can give you an extra edge while solving questions in NEET biology. However, do not neglect the NCERT syllabus, as it forms the foundation for NEET biology.