Genetic variants refer to naturally occurring differences in the DNA sequence among individuals within a population. These variants can involve single nucleotide changes (SNPs), insertions or deletions of DNA sequences, or larger structural changes in the genome. Genetic variants can impact traits such as susceptibility to disease, drug response, and physical characteristics. Research in genetic variants aims to identify and characterize these differences in order to understand their influence on human health and disease. This field encompasses various methodologies such as genome-wide association studies (GWAS), whole genome sequencing, and functional genomics to investigate the relationship between genetic variation and phenotypic diversity within populations. Overall, research in genetic variants plays a crucial role in advancing our understanding of the genetic basis of complex traits and diseases, and has implications for personalized medicine, genetic counseling, and public health interventions.