How does DNA GENETIC TESTING work?

I live in texas, and I want to know how does Genetic testing work? Do all the parties have to be present when a genetic test is being conducted? Since this is not really like a paternity test where the use cotton swabs, I would think the father of the child, the mother of the child, and the child in question wouldn't all have to present for that? True or False?

Well actually, I guess I mean "Paternity Comparison" where they compare blood types. They say that there is only so many possible matches. Such as if two people are blood type B and B the child has to have the blood tyep B or O. If the child has any other blood type such as AB or A, etc., the father is not the father. Do both parties have to give a sample? Can't they check hospital and birth records with that??

For your purposes, each person (Mother, Father and Child) would give a DNA test sample (in Ohio, this is a mouth swab). This can be done totally independent of each other. The results of the tests are then used to determine paternity and the test is considered to be fool proof.

Hospital records ( at least at this time) do not include DNA printing nor have I heard of any such data base being formulated for the future.

If the three people involved have not had this data base built for other reasons, then this would be the only way to determine paternity.

Best of luck and I hope this is useful

A genetic test is exactly like a paternity test. That's actually what a paternity test is- just a very specific type of genetic test.

It's hard to say exactly without knowing what they're testing for. I'm assuming it's probably a disease type test for a child. All that would be done is for the nurse to draw blood or get a cheek swab from the child (probably blood, but it might depend), then send it off to the lab. No need for anyone to stand around and wait, as it might be several weeks before results are returned. Now, for something like this it might require the consent of both parents if they're divorced and have joint responsibility for medical decisions, but they don't both need to be there.

In some rare cases, the testers may want samples from the parents to test against, but that doesn't mean that everyone has to be sampled at the same time- or even the same place.