DNA Screening

DNA Testing

Y-Chromosome Test

The test is conducted with a simple cotton tip swab on the inside cheek of the mouth and delivered to our associated lab which is recognized and accredited through American Association of Blood Banks (AABB), State of Texas – DPS Accreditation, State of New York, and U.S. Department of Homeland Security Immigration Testing. 

Most results are available within two to four business days after the lab receives the samples.

We provide the following DNA testing:

The Y chromosome is male only specific (not useful for female offspring) and is passed through generations unchanged from father to son.  If an alleged father is not available, a male child can be tested through his male paternal relatives related to his biological father. 

Paternity Test

DNA Profile

A paternity test is to establish who the legal father is after the child is born. Having the biological mother as part of each test strengthens the genetic evidence of the test.

If the parents of the child were not married when the mother became pregnant or after the child was born, the father does not have any legal rights to the child.

This test is conducted by collecting the DNA from the mother, child, and biological father.  If the biological father is not available, then DNA from his mother and father can be collected. 

DNA can be collected and stored on those that are interested in keep a DNA link among relatives or as a child safety identification.

Maternity

 

A maternity test is to confirm the biological relationship between a mother and a child.

This test might be useful where a child was separated by adoption or concerns that the baby was switched at birth.

This test requires DNA from the biological mother and the child.

Relationships

Full or half siblings

Relationship tests determine if two siblings are related either as full siblings (have the same biological mother and biological father) or half siblings (have the same biological mother or same biological father).

This test is conducted with the sibling’s biological mother(s) and biological father(s) if available.  If the biological father is not available, then the biological parents of the father(s) can be tested.

Twins

Determine if the twin siblings are identical or fraternal.

This test is conducted with the biological mother and the two siblings.

Grandparents

If the biological father is not available for a paternity test, his biological mother and biological father (the child’s biological paternal grandmother and grandfather) DNA can be used to reconstruct the father’s DNA.   

This can be conducted with:

  • Mother, Child, and 2 Paternal Grandparents
  • Mother, Child, and 1 Paternal Grandparent
  • Child and 2 Paternal Grandparents
  • Child and 1 Paternal Grandparent

As mentioned, having the biological mother as part of each test strengthens the genetic evidence of the test.

Aunts/Uncle

This is an avuncular test which tests paternity using the biological father’s brother or sister. This test will not give results as strong as a biological paternal grandparent but a good option if they are the only individual(s) available to determine the child’s father.

The test is conducted with:

  • Mother, Child, Aunt or Uncle
  • Child, Aunt or Uncle

 

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