About the Y-Chromosome Test (Paternal Lineage)
What is the Y chromosome and how is it inherited?
The Y chromosome is a type of DNA that only males possess and is passed from father to son virtually unchanged through the generations.
For this reason:
- All males of the same paternal line share the same Y chromosome haplotype.
- This includes: father, children, siblings, paternal uncles, paternal grandfather, paternal nieces and nephews, etc.
How does the test work?
The Y chromosome is a type of DNA that only males possess and which is passed on from father to son virtually unchanged through the generations.
For this reason:
- All males of the same paternal line share the same Y chromosome haplotype.
- This includes: father, children, siblings, paternal uncles, paternal grandfather, paternal nieces and nephews, etc.
Limitations of the test
Y chromosome analysis can confirm whether two individuals belong to the same paternal lineage, but cannot determine the exact degree of kinship.
FAQs
Frequently asked questions about
Y-Chromosome Test (Paternal Lineage)
Does this test allow us to know if two men are brothers?
Not exactly. The analysis of the Y chromosome can confirm whether two men share the same paternal origin, but it cannot distinguish the degree of kinship.
For example, two profiles can match whether they are:
- brothers
- father and son
- uncle and nephew
- grandfather and grandson
What happens if the profiles do not match?
If the Y chromosome profiles do not match, paternal relationship can be completely ruled out.
In this case, the individuals analyzed do not share the same father nor belong to the same paternal line, with a reliability of 100%.
Do you need help with your case?
Consult your case with our specialists and we will prepare a detailed, bespoke quote for you. Our team will be happy to assist you.
We can provide fast, confidential, and personalized advice so that you can carry out your paternity test with complete peace of mind.
Contact us and we will inform you without obligation
