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Y-Chromosome Testing Ireland

  1. FREE Peace of Mind Paternity Test Kit
  2. Legal Paternity Test
  3. Prenatal Paternity Tests
  4. AncestrybyDNA Test
  5. Immigration DNA Tests
  6. Cell Line Authentication
  7. Sibling Testing

  • ABO Blood Types can be used to calculate paternity?
    Learn More
  • Eye colour can be used to determine paternity?
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  • Consent is require to test a person's DNA sample?
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  • DNA can be used to help solve crimes?
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Y-Chromosome Comparison Test

DDC’s Y-chromosome DNA test is used to establish whether two or more males are biologically related through their paternal line (father's side of the family). This test directly analyses and compares male DNA with another man's DNA to verify if they are related through their paternal line. This is contrasted to the Ancestral paternal lineage test, which reveals your ancestral haplogroup based on your DNA alone.

Y-chromosome comparison testing is regularly used to verify family relationships when a male’s alleged father is unavailable for paternity testing and other family relationship DNA tests cannot be used in this situation.

A son inherits his Y chromosome from his father, and the chromosome undergoes very little or no change during this inheritance. Because of this fact, males’ Y chromosomes can be profiled and compared to verify whether the individuals are biologically linked through the paternal family line. Males who are biologically related in this way will have practically identical Y-STR profiles, while males who are not related will have unique and different Y-STR profiles.

Note: While Y-chromosome comparative analysis can establish whether males are paternally related, its important to note it cannot determine the nature of the relationship—whether they are father/son, grandfather/grandson, uncle/nephew, etc.

Below are links to learn more about Y-STR testing from DDC.

Who is tested?

How are DNA samples collected?

What will the Y-chomosome comparison test results clarify?

If you have additional questions about this DNA testing service, please call 01 506 0395.

For further information about DNA testing to establish whether individuals are related through their mothers side (maternal line), please visit our mtDNA Sequence Analysis page.


Purchase a Y-STR Comparison Test

Y-chromosome comparison testing for peace of mind

Y-chromosome comparison testing for peace of mind Buy a test using our online order form or by calling 01 506 0395.

per person

Y-chromosome comparison for legal purposes

To request a legal test, please call us at 01 506 0395.

per person


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