DNA Testing to Confirm Biological Parent

We have performed DNA relationship testing for many years, so you can confirm that the biological mother and/or father and/or siblings and/or half-siblings are truly related.

There are two options:

1. We can collect DNA specimens from the person(s) in Thailand and send them to you in your country, and you take your own DNA specimens of your child or yourself, and send them to your own DNA testing laboratory, so you could not possibly have any doubts, whereby you deal with the laboratory yourselves; or

2. We can collect DNA specimens from everybody -- both the Thailand specimens and your specimens (sending a kit to you if you are overseas) -- and send them to the laboratory we use in the USA (you can send your specimens directly to the laboratory if you are overseas), whereby we can handle and explain things to you.

We use the DNA Diagnostics Center (DDC), one of the oldest and largest laboratories in the world, and which has a very large private database of human DNA (from its customers). While a large database is not so important for mother and father relationship testing because it is quick and easy to get 99.9++% or 0.0000% probability as a result, on the other hand it can become important for relationship testing when the mother and/or father are not available but you want to test for siblingship, half-siblings, aunt, uncle, or grandparents. This is because the percent probability of being related starts to get more difficult to calculate accurately.

(A laboratory can claim any % probability, but do they show how they got that calculation? Ours shows their calculation, in detail. It is partly based on a huge private database. This sets the DDC apart from many other laboratories. Your percent probability of relatedness is affected by how common or rare the alleles are of each tested person, when there is a match, i.e., if you match an allele at a particular locus but that allele is common in the human population, then it does not increase your % probability much, but if you match on some relatively uncommon alleles, then the % probability can increase by a large amount. Any two randomly selected humans will have at least 99.9% the same DNA, and 98.7% the same as a chimpanzee or bonobo. A professional DNA test checks loci which tend to have variations in the human population. You may have allele matches on about 50% of loci with an unrelated, randomly selected person in the general human population, but if you are checking for a relationship with somebody and match on some relatively uncommon allele(s), that will increase the probability of being related. It is based on a large DNA databases of alleles, and checking a lot of loci.)

It is important that you have confidence in a DNA test, and peace of mind for the rest of your life, as this is an extremely important matter. You should feel free to ask any questions. We do not take offense. We understand, and we want for you to have peace of mind and confidence in moving forward.

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You can reach us any way you wish -- the contact form on this website, by email, by phone, or by office walk-in (preferably with an appointment in advance, for your sake in order to make sure I'm there at the moment, the native English speaker and the Director).

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