Paternity DNA Test

A molecular genetic test to establish biological relationships, specifically paternity, is based on the principles of inheritance and the storage of genetic information encoded in DNA. The test compares specific DNA fragments (genetic loci) between the individuals being examined.

Sample Collection:
DNA is extracted from cells collected from the inner cheek (buccal swab) using a cotton swab. This is a gentle, non-invasive method, especially convenient for children.

How DNA Inheritance Works:
During fetal development, a child inherits half of their DNA from the mother and half from the father. This means the child shares 50% of their genetic material with each biological parent.

A specific segment of the child’s DNA will match the corresponding segment in the parent with a 50% probability.

Test Accuracy Depends On:

  • The number of genetic loci analyzed
  • The nature of these loci — only unique, highly variable regions (such as hypervariable DNA) are examined to differentiate individuals.

Paternity Testing Procedure:

  1. The specialist determines which part of the child’s genetic material came from the mother.
  2. The remaining genetic markers are compared to those of the alleged father.
  3. If sufficient matches are found, paternity is confirmed.
  4. Including the mother in the test increases the test’s accuracy.

Sample Collection and Storage Conditions:

Proper conditions for collecting and storing samples are critical.
Violation of procedures may result in poor-quality DNA or failed extraction, requiring a new sample collection.

Testing Guidelines:

  • The test is conducted to establish biological kinship.
  • Participation must be completely voluntary.
  • The client is the person paying for the service.
  • DNA QAZAQSTAN provides pre-trial, judicial, or informational reports.
  • All participants must present valid ID documents. If a child is tested, documents confirming legal guardianship must also be provided.

Accepted documents include:

  • National ID card – for individuals 18 years and older
  • Birth certificate – for minors under 18
  • ID or birth certificate – for minors over 16
  • Legal representative of the child must be present

Who Can Be the Client:

  • A legal representative of the child (parent or guardian) with confirming documents
  • The alleged mother or father (if they are legal representatives of the child and have proof)
  • An alleged parent without legal status can only participate with the child’s legal guardian present
  • The child themselves, if they are over 18 years old

Test Participants:

  • The mother (presumed biological)
  • The child
  • The alleged father

Additional Testing:

If there is another child (or alleged father) in the family requiring kinship confirmation, we recommend the “Paternity Testing – Additional Sample” option.