Trusted Grandparent DNA Test | Premium 34 Or 46 Marker Tests |

Grandparent DNA testing provides answers, if alleged father is Unavailable/Unwilling!!

We offer most accurate grandparent tests (Up To 46 Markers) | Lab In USA
34 Markers $125 Or 46 Marker Test $175

Grandparent DNA Testing

What Is A Grandparent DNA Test?

Grandparent DNA tests compare the genetic DNA of two or more individuals to determine the statistical probability of whether or not the alleged grandmother and/or grandfather share a biological relationship with the tested child or children.

A Grandparent DNA test can establish paternity indirectly by analyzing the alleged father’s parent(s') DNA against a possible grandchild.  Most importantly this is very helpful when the alleged father is unavailable or unwilling to perform a paternity DNA test.

We recommend you use both grandparents to to fill in the blanks for the missing alleged father. However, only one grandparent can be used when both grandparents are not available.  It is also very helpful to add the mother of the child (FREE) if possible to help conclusiveness, or upgrade to the 46 marker grandparent test.

Furthermore, our grandparent DNA test can analyze up to 46 Markers, which is almost 300% more markers than the standard 16 marker grandparent test, and more than 2X more markers than competitors' 20-22 marker grandparent tests offered online.


Very Affordable Prices - FREE 2-WAY RUSHED SHIPPING- Fast, Accurate, Private Results

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How Accurate Is A Grandparent DNA Test?

A grandparent DNA test is 100% accurate, and can be performed with only one of the grandparents (Both Grandparents Preferred) and an alleged grandchild. We strongly recommend however, that the mother or known parent of the child take part in the analysis as well, if at all possible. This will increase the conclusiveness of the results.

Each person inherits half of their DNA from their mother and half from their father. When the known parent participates in the analysis, they are compared to their child.  The DNA inherited from that parent is eliminated from the child's genetic profile. As a result, we are able to identify and isolate the DNA from the other parent in question.

If both the alleged grandmother and grandfather take part, we are able to combine their profiles to reconstruct the father’s complete genetic profile. This test is a great option to consider when the child’s mother is not participating.

In some instances, for conclusive answers, you may also choose to run the extended analysis which will compare up to 46 markers for the most conclusive answer.

The Process Is Easy:

Upon receipt of your order, we will ship a sterile collection kit for FREE.

Sample Collection:
 Sampling is painlessly acquired with a cheek buccal swab.

Sample Analysis:
When all the samples are delivered to the lab, an email is sent advising your grandparent testing has started.

Results Reporting:
We send the results to the email address on file. Also, If you ordered hard copy results, they will follow shortly in the mail to the billing address listed on the order unless advised differently.

We’re Here To Serve Your DNA Testing Needs!

Reliability, Affordability, and Speed, that’s our commitment!  We do not offer our cheap pricing on the back of a low quality DNA test.

We stand behind the quality of the PRODUCTS & CUSTOMER SERVICE we offer.  The fact is, is the discount web-site for the biggest & most trusted relational DNA testing lab in the USA.  Our lab performs more relational DNA tests than any other laboratory in the USA.  Because of that, we are often imitated, BUT NEVER DUPLICATED!

Learn More About Grandparent Testing:

Can You Do a Paternity Test with a Grandparent?

Can A DNA Test Be Done With Just The Grandmother And The Child?

How Accurate Is A Grandparents DNA Test?

Which Grandparent Are You Most Related To?

Is That My Grandchild? Can PaternityUSA’s Grandparent Test Answer That?

What Is grandparent DNA Testing?

Can A Grandparent DNA test be done with a strand of hair?

Why buy I Buy A DNA test from PaternityUSA?

If I buy A Grandparent DNA Test, Can PaternityUSA Ensure My Privacy?

We Look Forward To Serving You!

Ordering Easy As 1 2 3


Choose the type of  relationship that you need answers for, and who is available.


Decide if you need answers for just personal knowledge or if you need answers for court or other legal matter.


Place order online using our secure shopping cart with credit card or PayPal, and we will deliver the DNA collection kits.