Paternity testing is in big demand and is the most accurate means for determining whether and alleged father is the biological father of a child. Different companies adopt different standards for the test and you should always read websites carefully. You should also get a good idea of what your paternity test result will look like.

Paternity Testing: How is it done?

You need to understand how the DNA testing is actually carried out to be able to understand what your paternity results will look like. Most home paternity tests are carried out using oral mouth swabs. These mouth swabs are simply rubbed inside the mouth. This procedure causes no pain and is highly effective in terms of DNA extraction. Ideally to ensure the highest possible results you will need to provide DNA samples from:

  1. The alleged father
  2. The child
  3. The mother

Testing can be carried out without the mother’s samples however; the result will be marginally lower in such cases. The paternity test report you receive will not simply show a ‘yes’ or ‘no’ answer.

Laboratory testing normally involves the analysis of 20 genetic markers (or loci) on all DNA samples. Each of these genetic loci will be represented by 2 numbers. For example, the father will display numbers 2, 8 for one specific genetic locus. The child will need to display either the 2 or the 8 on the same genetic locus as the one tested for the father. There will need to be a match with all the 20 genetic loci for an inclusion of paternity. If any markers do not match the result will be an exclusion.

My Paternity Test Result: What will it look Like?

The paternity test report provided will be rather detailed. The DNA testing company will give you a report with a neatly laid out table showing you all the genetic loci tested. If all genetic loci match and the mother’s sample has been included you will have a percentage probability of inclusion of 99.999%; this number is referred to as the probability of paternity. The result will further state that tested father ‘cannot be excluded’ as the child’s biological father. The wording sometimes creates confusion because it does not directly state ‘this man is 100% the biological father of the tested child’. The reason for this is that laboratory testing relies on the statistical probability of the alleged father being the child’s biological father and not any other randomly selected man from the same ethnic group. Mathematically speaking, there is a chance of another individual having the alleged father’s same DNA profile which means scientists can never establish with 100% probability that the alleged father is the biological father of the child- think about it, it does make sense! View paternity test results.

Paternity Test Result: Exclusion

When genetic loci do not match between father and child, even just one locus, the result will show a 0% inclusion of paternity. The result will read ‘this person is excluded as the father’; this is independent of whether the mother’s samples have been included in the test.

Paternity test results are accurate and reliable; serious DNA testing companies will provide a detailed report so that you can fully understand the DNA testing procedure.