Chapters in Biology known for having numerical-based questions in the NEET exam:

1. Genetics and Evolution:
- This chapter involves the study of inheritance patterns, genetic variations, and evolution.
- Numerical-based questions in this chapter often include the calculation of allele frequencies, Hardy-Weinberg equilibrium, genetic crosses, and population genetics.
- Questions may require the application of Punnett squares, chi-square tests, or genetic ratios to solve problems.

2. Biotechnology and its Applications:
- This chapter focuses on the principles and applications of biotechnology.
- Numerical-based questions may involve the calculation of enzyme activity, recombinant DNA technology, and gene expression.
- Questions may require the understanding of concepts like gene cloning, DNA sequencing, PCR, and gel electrophoresis, and their application in solving problems.

3. Plant Physiology:
- This chapter deals with the study of various processes and functions in plants.
- Numerical-based questions may involve the calculation of transpiration rate, stomatal conductance, photosynthetic rate, and mineral uptake.
- Questions may require the understanding of concepts like water potential, gas exchange, and the effect of environmental factors on plant physiology.

4. Human Physiology:
- This chapter focuses on the study of various physiological processes in humans.
- Numerical-based questions may involve the calculation of blood pressure, cardiac output, respiratory volumes, and renal functions.
- Questions may require the understanding of concepts like homeostasis, nerve conduction, hormonal regulation, and the interpretation of physiological data.

5. Ecology and Environment:
- This chapter deals with the study of interactions between organisms and their environment.
- Numerical-based questions may involve the calculation of population growth rates, energy flow in ecosystems, and biodiversity indices.
- Questions may require the understanding of concepts like ecological succession, biogeochemical cycles, and the analysis of ecological data.

It is important to note that numerical-based questions may also appear in other chapters of Biology, but the above-mentioned chapters are known for having a higher frequency of such questions in the NEET exam. To excel in these chapters, it is advisable to practice solving numerical problems, understand the underlying concepts, and be familiar with the relevant formulas and calculations.