Studies of DNA, the mayor responsible for genetic transfer between parents and offspring, have many applications, which include the therapeutic.

In addition, there are many other applications such as the identification of individuals in police cases. Recently it has also emerged the initiative to use it to verify the identity claimed by immigrants to enter a country with reason to be reunited with their families.

Operation of DNA

All individuals are genetically different except for the twins homozygous. The DNA of each person is therefore a unique combination that only he possesses.

Apart from the difference between all beings, there is a relationship with the parents of each of which is equal to 50In other words, unlike the DNA people and identifies families.

Moreover, the DNA of a particular species is more akin to all individuals of the same species with those of another. This facilitates the study of the evolution of species, since the higher the greater the close relationship between them.

Paternity Test

One of the best known applications of DNA analysis. It normally analyze the DNA of the father and child. When alleles (gene variants)are differents, there isn´t relationship.

These tests demonstrate the relationship between people. Therefore currently are alleged as evidence in cases in which an alien applies for a residence permit on grounds of family reunification.

Identificaciones policiales Police IDs

The first application of this kind was conducted in the UK in 1985 and since then it is a basic means that the police have to identify the perpetrators. It consists of an analysis of DNA from samples of hair, blood or other remains.

Solving crimes of sexual assault has been one of the most-favored with this technique. Identifying individuals is accomplished through DNA analysis of the remains of semen in the victim.

One of the techniques used is called a DNA fingerprint or DNA fingerprint. It uses a class of enzymes to break down the DNA samples into fragments that will be subjected to electric shocks.

This process will make them ordered in a particular way. After an X-ray film is obtained fingerprint characteristic of each type of DNA.

Other DNA tests

Deciphering the genes responsible for the transmission of disease and produce them in the necessary changes to prevent any sort of alteration that is one of the main functions of DNA studies.

Remarks

The Genetic Engineering is the science which deals with the study and manipulation of DNA to get new species such as in the case of agriculture where existing products.

These are plants with altered its genetic code, for example, in order to better suited to a particular climate.