The science behind genetic testing: how it works and why it matters
How genetic tests work
Genetic tests can be done with a high degree of accuracy thanks to advances in research genome human. Nowadays, thanks to this precision, it is much easier to know the genetic profile of a person, a couple, or different genetic mutations. In essence, what we are looking for is detect certain genetic characteristics specific. To do this, a sample is taken, which may be saliva, blood, semen, or another type of fluid. As a reference, certain markers are often used, which provide the necessary information for the question being asked.
Main types of genetic tests
There are numerous types of genetic tests depending on their purpose. It's important to understand them because, depending on the case, they vary in complexity. We can highlight the following cases because they are the most frequently requested:
1. Carrier test
He carrier test It focuses on detecting whether a person has a genetic alteration that may increase the likelihood of suffering from a disease. It is essential, however, to clarify that being carrier Having a mutation doesn't automatically mean having or developing the disease. It depends on several factors and whether it's an autosomal dominant or recessive gene.
2. Screenings
The screenings These are genetic tests, of varying magnitude, performed to rule out a population group suffering from a genetic disease. This can occur either when they are of a certain age, or when a group is considered at risk. Generally, the test focuses on one type of mutation or specific mutations, ignoring the others.
3. Diagnostic test
He diagnostic test It serves to confirm, or rule out, that you have a certain genetic mutation or disease. It is common that, before reaching this point, other previous tests have been performed to rule out the disease. Here, it is much more specific and the following are taken into account: genetic markers that provide the specific information.
4. Genetic compatibility test
The test of genetic compatibility It is performed based on the couple's genome. The goal is generally to check whether they have mutations that could affect their offspring. Remember that, in some cases, it's enough for one of the parents to have the mutation for the disease to develop.
5. Predictive test
He Predictive testing , unlike diagnostic testing, introduces the element of probability. It's not so much about detecting the disease, but rather knowing, with the genetic information from the markers in hand, what the likelihood is of developing it in the future. This is good because it allows us to modify habits and, in some way, reduce that risk or improve quality of life.
6. Pharmacogenetic test
He pharmacogenetic test It's vitally important, especially when starting treatment. For example, this analysis allows us to determine how the body will react to certain medications. This, in addition to improving the chances of successful treatment, reduces possible side effects.
7. Prenatal tests
The prenatal tests They serve as a method to detect any type of genetic abnormality, mutation, or disease in the fetus. This requires a few weeks of pregnancy. Afterward, appropriate decisions can be made.
8. Sports performance test
Genetics can also influence the intake of certain foods. For all these reasons, there are certain genetic tests aimed at improving an individual's athletic performance. It's worth learning about them.
Why genetic testing is important
Genetic testing has undoubtedly revolutionized various areas, even beyond health. Let's give some practical examples of why they're so beneficial:
1. Genetic testing: disease prevention
First of all, genetic tests are a great ally for Preventing illness . Not surprisingly, in many cases there is a risk, but it can be reduced with good habits or by abandoning harmful ones. This is a key aspect, especially when dealing with long-term issues.
2. Treatment of genetic diseases
He treatment of diseases This is the second aspect in which these tests are very helpful. First, because they allow you to determine exactly what you have, especially when it comes to rare diseases. And second, because early diagnosis is a favorable element for successful treatment.
3. Family planning
The family planning This is another area where genetic testing provides certainty. Not surprisingly, a genetic compatibility study can determine whether or not offspring are likely to suffer from certain diseases. From this, decisions about having offspring will be made.
4. Improved sports performance
A genetic test is useful for Improve athletic performance . For example, whether you're compatible with certain foods or what training regimen might improve your endurance or strength. All of this information is even more important when it comes to elite sports, where detail is crucial.
5. Identification of persons for affiliation
The identification of people for parentage is another of the practical applications of these tests. Not in vain, it is possible to know the genetic fingerprint And if samples from the offspring and the alleged parent are available, the two can be compared and it can be determined with 100% accuracy whether there is a relationship. This, obviously, has helped clarify various claims that were previously less likely.
6. Resolution of court cases
Finally, reference must be made to the Resolution of court cases . Genetic testing has been used to identify victims, but also potential perpetrators. And unlike other investigative methods, which are circumstantial, this method provides certainty, so it's no surprise that it's commonly used by the police and courts.
Therefore…
Genetic testing has become a fundamental element for numerous issues. Want to clear up any doubts? At Genotica, you'll find different genetic testing options that you can compare by type, level of detail, price, and shipping times. Use the comparator to find the one you need!