Gene evolution is the study of how genes change over time through processes such as mutation, recombination, and natural selection. Researchers in this field explore how genetic sequences evolve within and between species, leading to changes in phenotype, function, and adaptation. By studying gene evolution, scientists can gain insights into the mechanisms driving genetic diversity, speciation, and the evolution of biological traits. This research area is fundamental to understanding the genetic basis of evolution and the complexity of the genetic code.