what dna is used for
Since DNA contains genetic code, much of it is studied and analyzed for a variety of reasons. Generally, DNA testing may be used in identification or classification of family trees and it may also be used in various sciences for study in diseases and crimes. In cases where a particular child has no identified father, DNA testing is a big help in tracing the real person who fathered the said child.
(Illustration by Carlyn Iverson) [LARGER IMAGE]. DNA can be used to understand the evolution of modern humans, trace migrations of people, identify individuals, and determine the origins of domestic plants and animals.DNA analysis, as one scholar put it, is the greatest archaeological excavation of all time..Illustration by Carlyn Iverson) [LARGER IMAGE]. DNA can be used to understand the evolution of modern humans, trace migrations of people, identify individuals, and determine the origins of domestic plants and animals.