How are DNA tests done? What do they consist of?

by TM Maria Be a king in your own kingdom

Performing a DNA test is a fairly common and common procedure among those who wish to prove the paternity of their son or daughter, know the kinship between individuals, tests for surrogate pregnancy or for more and more genetic tests. The nature of this clinical analysis can be both informational and personal, as well as legislative or judicial.

Depending on the purpose and destination of these tests, the application procedure and the implementation procedure will vary and will be carried out through specific conditions. Here is the best lab for DNA testing in New York.

The differences between informative and legal DNA tests

The most notable changes and differences between the judicial and private DNA tests, in this sense, are the following:

·        Individual or informative DNA tests: in them, the names of those involved are not included in the report. The interested party can perform the test at home, without having to travel to a laboratory or medical center. They do not have any judicial validity.

·        Legal DNA tests: they are requested through an expert report and are supervised, carried out and guarded by judicial and health personnel. Each one of them must be certified for it. On the other hand, results reports include the names of those involved in the test.

The legal DNA tests are usually those that involve a more strict and formal process, because a reliable result is required 100% and without errors. However, the steps to follow to perform them are the same in both.

Steps to follow to perform a DNA test

1. Collect the sample:

The samples required must be biological and belong to each of the subjects whose relationship must be analyzed. The oral swab has become the star process to collect samples. This responds to a process of direct extraction of oral fluids.

2. Analyze the sample:

Once in the laboratory, the sample is analyzed and the DNA is extracted, as well as purified. After that and following the process called Polymerase Chain Reaction Technique (PCR) , the DNA is subjected to an amplification to increase the presence of the specific sections of each individual.

The sections obtained are the STR (of the English Short Tandem Repeat), which offer a clear and exact sample of its length and its repetitions. Put another way, you see how the DNA chain is formed. In this way, when compared with the chain of the other individual, coincidences or differences will be better appreciated.

3. Examine the sections of the DNA:

The process described in the last lines of the previous point consists, in one way or another, in this point 3. Once the sections and the structure of the DNA chain of the subjects have been obtained, each and every one of these parts must be examined. Conscientiously. Thanks to this, the geneticist will obtain greater security in their results.

As an example, for a paternity test, the professional must ensure that the child's DNA chain matches those of the father and those of the mother at 50%. That is, the child's chain must have 50% of the mother and another 50% of the father.

4. Formalization of the test:

At this point the different procedures carried out by the laboratories come into operation. Brooklyndnatesting.nyc for example, follows steps to formalize the DNA test that we detail on our website. However, what is clear is that depending on the fate of this test, the procedure will require more or less supervision.

For those who want a formal, legal and legal DNA test, the user must provide their personal data and identification, including legal documents relating to the request for proof. Those who want to request a particular paternity test, with their personal data (name and address) is sufficient.

As can be seen, the nature of the DNA tests is extremely binding and relevant in terms of the procedure. Many patients and users who carry out this request do not usually consider this distinction. Therefore, doubts and mistakes are very common.

Broadly speaking, you should always bear in mind that a DNA legal test has a court as a recipient. This implies that its result requires guarantees and procedures that are much more exact, assured and rigorous, since the jury's resolution will depend on it.

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Created on Dec 14th 2018 11:34. Viewed 431 times.

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