The DNA test is done with the aim of analyzing the person's genetic material, identifying possible changes in DNA and verifying the probability of the development of some diseases. In addition, the DNA test used in paternity tests, which can be done with any biological material, such as saliva, hair or saliva. Find out what genetic counseling consists of.
The price of the examination varies according to the laboratory in which it is performed, objective and genetic markers evaluated, and can cost between R $ 400 and R $ 1000.00 and the result can be released in 24 hours, when the objective is to evaluate the total genome of the person, or a few weeks when the test is done to check the relationship.
What is it for
The DNA test can identify possible changes in the person's DNA, indicating the probability of the development of diseases and the chance of being passed on to future generations, besides being useful to know their origins and ancestors. Thus, some diseases that the DNA test can identify are:
- Various types of cancer; Heart disease; Alzheimer's; Type 1 and type 2 diabetes; Restless legs syndrome; Lactose intolerance; Parkinson's disease; Lupus.
In addition, DNA testing is used to check the relationship between parent and child. For that, you need a biological sample of the supposed son, mother and father, but it can also be done during pregnancy. Find out how the paternity test is done.
How is done
DNA testing can be done from any biological sample, such as blood, hair, sperm or saliva, for example. In the case of DNA testing performed with blood, it is necessary that the collection be performed in a reliable laboratory and the sample be sent for analysis.
However, there are some kits for home collection that can be purchased online or in some laboratories. In this case, the person should rub the swab contained in the kit on the inside of the cheeks or spit in a proper container and send or take the sample to the laboratory.
In the laboratory, molecular analyzes are carried out so that the entire structure of human DNA can be analyzed and, thus, check for possible changes or compatibility between samples, in the case of paternity, for example. Know the main molecular techniques.
