Answers to What is DNA Fingerprinting - Technology

A lot of people have been asking what is dna fingerprinting. DNA fingerprinting is a technique used by scientists and physicians to check the identity of a person based on his DNA. DNA is the material that defines the physical attributes of an individual. It is used by the cells as reference when constructing the different parts of the body including the organs and other tissues. DNA cannot be altered or changed. It would remain the same no matter what happens. It is considered by many as the most reliable identification material. It can be attained using samples from the different parts of the body. Once the samples have been acquired, the process of fingerprinting can be accomplished through the different techniques and methods available. DNA fingerprinting is done by evaluating the different parts of the genes. The DNA is composed of genes, which are used by the cells as reference. Using each gene, a person can be identified. The different genes are located in specific samples such as hair, skin and fluid specimens coming from the different parts of the body. This is what makes DNA fingerprinting very accessible and flexible. The person can be identified using different cells. That is why a culprit committing a crime can be caught if there are physical specimens left in the scene. The DNA collected should be safely stored in order to prevent contamination. The use of a dry container would allow the DNA to be preserved for decades. If the DNA has been contaminated, it can still be used through a purification process. Although it would take a long time, it is possible to retrieve the proper evidence. The DNA collected can be examined in different ways. This is possible through the special tests available to people. The DNA signature technique can be used to find the specific marks that are unique to the person. The PCR comparison technique would allow the DNA of a person to match the samples taken from a specific place or item. People who wa nt to know what is DNA fingerprinting should read guides and instructional items found in the internet. They would learn a lot of things.