DNA finger testing is also called as DNA typing/ DNA profiling / genetic fingerprinting / genotyping or identity testing. It is the genetic method used for isolating & identification of the base pair pattern in individual's gene. Used for paternity or maternity test, plant variety protection, genetic purity test, studying diversity, tracking genetically modified plants & organisms.
DNA fingerprinting is a method of organism identification that compares fragment of DNA. Because every organism's DNA profile is unique, this technique uncovers polymorphism that is as unique as a fingerprinting. Compare to phenotypic markers, such as leaf shape, flower color & such, DNA fingerprinting are not influenced by environmental factor & remain constant during the life cycle of the organism. The crowning utility of a DNA fingerprint is to enable examination of the extent of genetic variation (i.e. relatedness) within & among populations such as families, genera & species.
