About the Y chromosome

This chromosome has a very low mutation rate and is exclusively inherited down the paternal line. Any males that descend from the same paternal blood line will also have the same Y chromosome profile. The y test is done by short tandem repeat analysis and is in fact, sometimes referred to a Y-STR testing.  The Y chromosome carries the SRY gene – the sex determining region Y. It is this region that codes for maleness as the Y chromosome and not the X, is the sex-determining gene.

When can a Y chromosome test be used?

  • If paternity testing is not an option then a Y chromosome test is a good alternative. Testing the alleged father’s brother/s with putative father’s male child can confirm whether there is a paternal relationship. The cost of the Y Chromosone test is $349.
  • Siblings (brothers) wishing to confirm if they have the same biological father. If they have different Y chromosome profiles thay do not share a common paternal line.
  • Any male relatives who wish to confirm whether they share a common paternal line, no matter how distant.
  • As proof of relationship in immigration cases.
  • This test can help in adoption cases where children grow up want to find their biological or “birth” families.

Note: We can only guarantee standard result turnaround time when testing takes place solely using oral swab samples. Using a discreet sample for your test may lead to an increase in turnaround time.

 

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