DNA Testing Center Paternity Test Facts and Statistics

Here is a list of our most frequently asked questions.

Paternity Prenatal Testing Accuracy Confidentiality Results Sibling Study Shipping to multiple locations

  1. Price includes the kit, DNA analysis, and reporting of the results. The paternity kit includes the Alleged Father, Child, and Mother (if available) for $280.00. Applicable taxes and shipping will be added upon processing out. Shipping and handling is $15 for all domestic orders and taxes apply only if product is shipped to the state of Texas. For more information please see the shipping page .
  2. CHAIN OF CUSTODY
    Results from the test are not admissible in a court of law due to the lack of the "chain of custody". The chain of custody refers to the various chain of "hands" that the individual sample passes through. A legal chain of custody requires the samples to be collected in the presence of a third neutral party at a lab or hospital facility where all parties are photographed to verify their identity.
  3. If you would like to set up court admissible testing, " click here "
  4. Individuals in different locations should collect their samples within 4 weeks of one another.
  5. Test results are mailed to adults listed on the authorization form which is supplied with the kit. No other party will be able to request results without a written consent form from the purchaser.
  6. There are no age requirements.
  7. No permission is required from Spouse, Doctor, or Attorney, to obtain your alleged children samples.
  8. What if I have a special sample to submit like a bloodstain, semen, or a cigarette butt? Special samples can be used with the home DNA test kit, however, additional charges apply. See this link for special sample pricing. The additional cost is not refunded if no DNA is present on the special sample.
  9. What if there is more than one possible father in a paternity dispute? If the alleged fathers are brothers or father and son then they should each be tested at the same time. Related individuals share more of their genetic code than unrelated individuals. When there are related possible fathers, not testing all parties could result in falsely implicating the alleged father.
  10. If the subjects are in different cities then we recommend that the kit be sent to the other person first. They take their (or child's) sample and mail it to you. You take your sample and mail it to the lab in the included mailer. We can send a kit to each location (domestic orders only) for an additional $30 per location. See this link for more information.
  11. For purposes of identify testing, there is no difference in DNA derived from buccal swabs or blood.
  12. Why are test results sometimes delayed? There are many factors that could cause your test to be delayed. The lab expedites any failed or delayed tests. Here is a l ist of the most frequent causes .
  13. The DNA testing performed is not affected by the DNA of bacteria, common foods, tobacco, or mothers milk.

Prenatal DNA Paternity Testing

Please see this link for prenatal testing.

Accuracy

Please see our accuracy section .

Confidentiality

  1. Test results are strictly confidential. They are released only to the adult persons who were tested and, as requested, to their authorized agents (e.g. attorneys).

  2. All kits shipped to the 50 US States in a FedEx or priority mail envelope with no external markings pertaining to the contents. The packaged is shipped from D-FWmall.com.

  3. International orders shipped by FedEx will contain the words "home DNA test kit" on the airbill and commercial invoice (for customs). International orders shipped by Global Priority have no external markings pertaining to the contents. The packaged is shipped from D-FWmall.com.

  4. We email customers when their order has shipped. No follow-on activity is initiated except by customer request.

  5. Results from the laboratory can be mailed in an plain envelope when requested on the authorization form that comes with the kit.

Results

Paternity and Maternity

  1. The results will be presented by notarized letter with the subjects names and many complex numbers displaying the system results.
  2. The results will provide an INTERPRETATION similar to one of the following

Where the alleged father is the biological father.

The alleged father, John P. Smith, cannot be excluded as being the father of the child, Bob Q. Smith. Based on these data, the probability of paternity is 99.9982% as compared to an untested randomly chosen man of the CAUCASIAN population. (Prior Probability=0.5)

At least 99% of the male population is excluded from the probability of being the biological father of the child, Bob Q. Smith.

Signed and Notarized

Where the alleged father is not the biological father.

The alleged father, John P. Smith, is excluded as being the father of the child, Bob Q. Smith. For seven different genetic systems analyzed with the polymerase chain reaction, the alleged father, John P. Smith failed to match the obligate paternal allele present in the child, Bob Q. Smith.

Signed and Notarized

Sibling Study

  1. Only use the siblingship test when the parental samples are unattainable.
  2. Results take several weeks to complete.

When two siblings truly are full siblings, the siblingship index can vary dramatically, depending upon which of the following scenarios occurs:

1. True Siblings Who Share Rare Genes
If the two alleged siblings share very rare genes, the results will report a high likelihood that the two individuals are full siblings.

2. True Siblings Who Share Common Genes
If the two individuals are truly full siblings but they only share genes commonly found in the population, the likelihood that they are full siblings is reduced greatly. This is because the common genes have a high probability of being shared out of coincidence.

3. True Siblings Who Share No Genes

Mother: A 1 A 2 Father: A 3 A 4

Possible Offspring:
A 1 A 3
A 1 A 4
A 2 A 3
A 2 A 4

Two true offspring of the mother and father above could be A1,A3 and A2,A4. Thus, the two true siblings could actually have no genes in common. This would calculate as a low siblingship index, even though the two siblings actually are full siblings. When two siblings are not full siblings, the same kind of variability in the likelihood ratio can occur.

4. Non-Siblings who Share Rare Genes
Two non-related individuals can share the same genes. Sometimes, they might share rare genes by coincidence. When this occurs, the likelihood ratio of full siblingship will be fairly high, even though they are not siblings.

If it is known that the two children share a mother, it is preferable to test the mother's sample with the children's samples to increase the accuracy of the test. While a siblingship study is not the optimal way to test for familial relationships, the DNA test is the most accurate test available. Routine paternity tests typically take one week, but a siblingship study can take several weeks to complete.

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