variation in the lengths of restriction fragments of DNA. These fragments are obtained from different individuals due to genetic polymorphism of the restriction sites in the chromosomes. It is also known as restriction fragment length polymorphism (RFLP).
A technique for identifying individual organisms based upon the uniqueness of their DNA pattern. The technique has applications in forensics, anthropology, conservation biology, and ecological research.
Apart from identical twins (which are natural clones) each person's or individual animal's DNA is unique. Analysis of this DNA, called DNA typing or DNA fingerprinting, can be used like fingerprints to identify individuals or distinguish between a range of suspects in a crime. The same technique can also be used to distinguish between otherwise indistinguishable animals and trace relationships.
DNA fingerprinting is a method used to identify individuals within a species. The DNA fingerprint itself is the individual-specific autoradiographic banding pattern (shown by electrophresis) that is produced when DNA is digested with a restriction endonuclease.
A pattern of DNA sequences, e.g. tandem repeat sequences, unique to an individual. This DNA `profile', which can be detected in minute amounts of cells (e.g. in blood or semen), can be used in criminal cases and paternity suits to establish identity.
Sequences of nucleic acids in specific areas on a DNA molecule are polymorphic, meaning that genes in those locations may differ from person to person. DNA fragments can be cut from those sequences using restriction enzymes.
Analyses of the lengths of the fragments reveal that when looking at multiple VNTRs within and between individuals, no two people have the same assortment of lengths. This technique became known to the public as "DNA fingerprinting" because of its powerful ability to discriminate between unrelated individuals.
The use of restriction enzymes to measure the genetic variation of individuals. This technology is often used as a forensic tool to detect similarities in blood and tissue samples at crime scenes. In the cattle business, this technology is used to verify the parentage of individual animals.
a DNA analysis method that measures genetic variation among individuals. This technology is often used as a forensic tool to detect differences or similarities in blood and tissue samples at crime scenes.
Detecting patterns in DNA that indicate the presence of a gene for a trait. The pattern resembles a bar code printed on a commercial product so computers can scan the price. Forensics experts can use this distinct pattern to link or clear an Individual suspected of being involved in a crime, like they compare fingerprints. Breeders can use these patterns to find and select breeding stock with traits such as disease resistance.