
DNA, or deoxyribonucleic acid, is the molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of nearly all living organisms. Structurally a double helix resembling a twisted ladder, it consists of four chemical bases—adenine (A), thymine (T), guanine (G), and cytosine (C)—which pair specifically (A-T, C-G) to store information.

Ancestry DNA testing is a type of genetic analysis that uses a saliva sample to examine an individual's DNA, comparing it against vast databases to estimate ethnic origins, map geographic ancestral roots, and identify genetic matches with relatives. It generally analyzes over 700,000 markers using autosomal DNA for comprehensive insights into family history across all lines.

The questions of who we are and where we come from have been asked for throughout our history. Once we explained our origins with mythology and folklore but now we utilize modern science to answer them. Genetics help us tell the story of our origins from the beginning, through the formation of the human gene pools and to the last 2000 years of history. The test results you have just received, along with the following information, will help you understand your personal story, from the shared history of all humans to your unique family story.

* The GPS Origins test is an Autosomal (SNP) test that is not gender specific. Although both Migration Patterns represent your Maternal and Paternal DNA route, we cannot differentiate which route is specifically your parents’ individual route at this time.

Immigration DNA testing is a specialized, voluntary, and highly accurate scientific procedure used to prove biological relationships—such as paternity, maternity, or siblinghood—when official documentation (like birth certificates) is missing, unavailable, or insufficient for visa, passport, or immigration applications. It is generally required by authorities like USCIS or consular offices to verify familial bonds.
Paternity DNA testing is a highly accurate, scientific method to determine if a man is the biological father of a child by comparing their DNA profiles, usually achieving over 99.9% accuracy. It involves collecting cheek (buccal) swabs, blood, or other samples from the child, alleged father, and sometimes the mother to identify matching genetic markers.
Maternity DNA testing is a highly accurate, scientific procedure used to determine if a woman is the biological mother of a child by comparing their DNA profiles, usually via a quick, non-invasive cheek swab. It confirms or rules out biological motherhood with over 99.99% accuracy, often used for immigration, adoption, cases of suspected child switching at hospitals, or in-vitro fertilization (IVF) errors.
Missing parent DNA testing, or genetic reconstruction, is an indirect method used to establish paternity or maternity when the alleged parent is deceased, missing, or unavailable. It involves analyzing DNA from available close relatives—usually both biological grandparents—to determine if they share enough genetic markers with the child (typically 25% with each grandparent) to confirm the biological relationship.
Sibling DNA testing is a genetic analysis that determines the likelihood of a biological relationship between two or more individuals to establish if they are full siblings, half-siblings, or unrelated. It is commonly used as an indirect method to confirm parentage (paternity or maternity) when the parents are unavailable.
An avuncular DNA test (aunt/uncle test) is a laboratory analysis used to determine if a child is biologically related to their alleged aunt or uncle. It compares DNA samples via a simple, non-invasive cheek swab to establish a, often, 25% genetic relationship. It is primarily used to confirm familial relationships when a parent is unavailable for testing.
Twin Zygosity DNA testing is a highly accurate, non-invasive procedure that analyzes DNA from twins (or higher-order multiples) to determine if they are identical (monozygotic) or fraternal (dizygotic). It compares DNA markers, usually from a cheek swab, to confirm if twins share 100% of their DNA (identical) or roughly 50% (fraternal), aiding in medical history, organ donation, or personal curiosity.
Y-STR (Short Tandem Repeat) DNA testing is a forensic and genealogical tool that analyzes specific, fast-mutating markers on the Y-chromosome passed directly from father to son. Because females lack a Y-chromosome, this method is highly effective for isolating male DNA in complex, mixed samples (e.g., sexual assault cases) or tracing paternal lineage across generations.
Grandparentage DNA testing is a scientific analysis used to establish a biological relationship between grandparents and a grandchild, usually to confirm paternity or maternity when the alleged parent is unavailable. Using, or buccal cheek swabs (1, 13), it compares genetic markers to calculate the probability of relationship, often achieving over 99% accuracy when both grandparents are tested.

DNA profiling (or DNA testing/fingerprinting) is a forensic and scientific technique that identifies individuals by analyzing unique patterns in their genetic material, specifically focusing on highly variable, non-coding regions known as short tandem repeats (STRs). This process creates a distinct molecular profile from biological samples like blood, saliva, or hair, used widely to link suspects to crime scenes, determine paternity, and identify human remains.
Infidelity DNA testing is a forensic, private service that analyzes biological samples—such as clothing, bedding, hair, or tissues—to detect foreign DNA or bodily fluids (semen, saliva) to determine if a partner has been unfaithful. It identifies the presence of DNA from another person, confirms the gender of the donor, or compares found DNA to a reference sample.
Human identity match DNA testing is a scientific process used to verify if two biological samples—such as blood, hair, saliva, or tissue—originate from the same individual or are from closely related individuals. It is a highly accurate form of biometric identification that compares specific genetic markers, often called short tandem repeats (STRs), to establish a match or, in cases of paternity, to confirm a biological link.
Health & Wellness DNA testing is a genetic analysis that examines an individual's DNA to provide personalized insights into health predispositions, lifestyle traits, and wellness optimization. By identifying genetic markers, these tests offer actionable information on nutrition, fitness, disease risk, and metabolic factors.

Use DNA Testing To Maintain Better Daily Health Practices According To Your Biological Makeup

We take our clients' privacy and confidentiality very seriously at PD CORP. All testing is performed in a secure facility, and we never share our clients' information without their consent. All Sample Data is concealed and disregarded after consent of use and delivery to case destination.

We know that time is of the essence when it comes to paternity testing. That's why we offer fast turnaround times and can have results available in as little as 48 hours.



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