Tuesday 23 January 2018

DNA fingerprinting


A short idea about DNA fingerprinting

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.

1 comments:

  1. Very useful and interesting information shared by you. Thanks for sharing with us.

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