DNA is the main molecule of all living things. It constitutes the blueprints of every living things through which their character traits are passed on from generations to generations. However, every living organisms differ only due to their nucleotides sequences of chromosome. The nucleotides form codes and these coded genetic informations can be profiled to show the most authentic identity card of any organism. This complicated technology that facilitates the identification of every individuals at genetic level is known as DNA profiling. This genetic analysis is based on identifying tiny segments of the hereditary materials which will then be able to use to testify the unique molecular signature which cannot be altered.
The basic requirements for DNA profiling is the availability of biological samples such as blood stains, a piece of hair with its root, skin cells, a mouth swab, cells of bone marrow of any body tissues.
In 1984, a British geneticist, Alec Jefferys developed the technique of DNA fingerprinting. This method has been patented, used in Europe and America. It is based on identification of small segment of DNA which testifies the unique molecular signature that every person on earth has which cannot be changed.
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| The First DNA Fingerprinting |
Source(s):
- http://www.sciencemuseum.org.uk/WhoAmI/FindOutMore/Yourgenes/Whydoscientistsstudygenes/WhatisDNAprofiling.aspx
- http://www.zimbio.com/Genetic+fingerprinting/articles/7/DNA+Profiling+Fingerptinting
- Google Images
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