Though our understanding of DNA remains quite limited, and the use of gene therapy in medicine has not yet come to fruition, DNA has been used in determining a person's identity--in particular to establish definitive answers to how two or more persons are related, eliminating much ambiguity and doubt.
儘管人類對 DNA 的所知仍十分有限，基因治療在醫學上的應用也還未見突破，但 DNA 應用在人身判定、特別是親子鑑定上的成果，已然使許多曖昧與疑慮無所遁形。