what are the two most common uses of dna fingerprinting
DNA profiling DNA profiling is most commonly used as a forensic technique in criminal investigations to identify an unidentified person or whose identity needs to be confirmed,[2] or to place a person at a crime scene or to eliminate a person from consideration. DNA profiling has also been used to help clarify paternity, in immigration disputes,[3] in parentage testing and in genealogical research or medical research. DNA fingerprinting has also been used in the study of animal and floral populations and in the fields of zoology, botany, and agriculture.[4]
Fingerprint Although ancient peoples probably did not realize that fingerprints could uniquely identify individuals,[61] references from the age of the Babylonian king Hammurabi (reigned 1792-1750 BCE) indicate that law officials would take the fingerprints of people who had been arrested.[62] During China's Qin Dynasty, records have shown that officials took hand prints, foot prints as well as finger prints as evidence from a crime scene.[63] In China, around 300 CE, handprints were used as evidence in a trial for theft. By 650, the Chinese historian Kia Kung-Yen remarked that fingerprints could be used as a means of authentication.[64] In his Jami al-Tawarikh (Universal History), the Persian physician Rashid-al-Din Hamadani (also known as "Rashideddin", 1247â€“1318) refers to the Chinese practice of identifying people via their fingerprints, commenting: "Experience shows that no two individuals have fingers exactly alike."[65] In Persia at this time, government documents may have been authenticated with thumbprints.[citation needed]