Genetic variation in a population is crucial for evolution and adaptation. It provides the raw material for natural selection by creating diverse traits, increasing the chances of survival in changing environments. Populations with higher genetic variation are more resilient against diseases, pests, and climate shifts. Furthermore, this variation facilitates reproductive success and enhances the overall fitness of a population. In agricultural contexts, greater genetic diversity can improve crop resilience and yield, ensuring food security. Ultimately, genetic variation is pivotal for the long-term sustainability of ecosystems and species.