DNA profiling or DNA fingerprinting is a sophisticated technique which is used often by experts which are helpful in identification of individuals by their respective DNA profiles.
Some interesting salient features of DNA fingerprinting are:
- DNA fingerprinting is a technique to identify a person based on his/her DNA.
- DNA fingerprinting is specific to a person and it cannot be changed by any treatment.
- It is also known as genetic fingerprinting or DNA profiling.
- DNA fingerprinting is a very quick way to compare the DNA sequence of two living organisms.
- Sir Alec Jeffrey (1984) invented the technique of DNA fingerprinting.
- 99.9 per cent DNA is identical between individuals, but 0.1 per cent that differs can be used to distinguish one individual from another.
- DNA fingerprinting uses a specific type of DNA sequence, known as microsatellite.
- Microsatellites are short pieces of DNA, which repeat many times in a given person’s DNA.
- In a given area, microsatellites tend to be highly variable that make them ideal for DNA fingerprinting.
- In a given area, microsatellites tend to highly variable that make them ideal for DNAfingerprinting.
- By comparing a number of microsatellites in a particular area, a person can be identified easily.