What is PCR?

One of the questions that scientists often face when processing a DNA test sample is not a lot to work. In essence, scientists have only a few strands of DNA to work, which can be difficult when you try to obtain a sample. The biggest problem here is that sometimes the most abundant DNA test kits produce accurate results. Chances are, a scientist seeks thousands if not millions, of different chains of the DNA in question so that they continue to run tests to produce results. But how can this be achieved with only a small sample will be obtained?

Using a method called polymerase chain reaction (PCR), scientists can a single copy of a piece of DNA to be consistent and multiply until they have millions, if not more for copies of the work piece with DNA. The name comes from the major component in the amplification of DNA. DNA polymerase is an enzyme that helps DNA replication. They catalyze (speed up) the polymerization of deoxyribonucleotides along the DNA strand. These polymerases read the code and then use it as a template. Using it as a model, they can go to another track, then a stern, to the required amount of material for research to create.

DNA testing - the development of the PCR technique

The PCR technique was developed in 1983 by Karry Mullis. Karry Mullis, an American biochemist, won the Nobel Prize for creating the PCR in 1993 and has since become a central technique in biochemistry and molecular biology. However, the story behind his invention is very interesting. The inspiration for the PCR were from road markings, noticed that his creator while riding a scooter. The concept of using a primer pair as an accolade came and he realized that this would allow the order was necessary to make sure that the PCR technique was born.

DNA testing - main application of PCR

A particular area of ​​science that relies heavily on PCR, DNA forensics. If it was left at a crime scene, which was not the victim, scientists would have little material to work with. If they want one of the many different types of DNA tests run, it will obviously require further analysis. Therefore, by performing a polymerase chain reaction, can still replicate DNA for testing. In doing so, they can ensure they have enough DNA tests run continuously, with a view to more accurate results.

The creation of the polymerase chain reaction has been to improve the definition of molecular biology and biochemistry. At one time, scientists have been very small quantities of the desired DNA chain, but now they are able to reproduce the order in which they always want more and more material for tests, which d particular importance in the forensic tests of genetic material or whether a suspect may in fact guilty of the alleged offense.