The study of human DNA and genetics can be intellectually fascinating, but it also has plenty of practical applications. From the use of DNA in court cases to the discovery of new therapies for genetic diseases, a thorough understanding of the human genome can have important medical, social and legal impacts.
Studying human DNA and genetics can help scientists better understand where humans came from as a species. It can help elucidate the connections between different groups of people and give historians and anthropologists a clearer picture of historic human migration patterns.