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Y Chromosome Test

 (Male Specific)
Initiate Test | Participants | Type of Samples | Procedure | How to Video | Understanding Results  
Special DNA Tests - Chromosome Test through Y chromosome Analysis Y-STR , or Y Chromosome Short Tandem Repeats, is another testing method we offer. Y-STRs are found only on the male-specific, Y chromosome. The Y chromosome is inherited through the paternal line and remains virtually unchanged through many generations. By examining specific locations on the Y chromosome, we can generate a Y-STR profile for each male tested. Males who are related through their fathers will tend to have the same or similar Y-STR profiles, and males who are not related will likely have different Y-STR profiles.
Areas of use in Y-chromosome testing:
When an alleged father is not available for testing, male relatives of the alleged father can be used as a reference; only male children can be tested via this method.
When a mother is not available for testing, the Y-STR method can be used in conjunction with nuclear 

DNA STR testing

 to prove 


 (i.e., mutation cases); again, only for male children.
In forensic cases, when a mixture is present…
...where either more than one male may be present, it can be used to determine the number of males present;
...a male and female mixture is present, the male sample can be masked due to the high concentration of female sample; the Y-STR method will ignore the female portion of the mixture, and only focus on the male sample.the male sample.
If there is a missing male person, male relatives can be used as a reference to provide a DNA match.
What does a Y-STR chromosome match mean?
Two individuals that share the same Y-STR haplotype are very likely related through the same paternal line.
If male A has a Y-STR haplotype that matches the Y-STR profile found in an unknown sample, then male A cannot be excluded as being the donor to that unknown sample. In addition, all patrilineal relatives of male A cannot be excluded. It may also be true that an unknown number of unrelated males may not be excluded as being the donor of that unknown sample.

There are many scenarios in which the Y-STR test may be used. To determine if this test will be helpful in your particular situation, please contact us or call 800-DNA-EXAM (800-362-3926). One of our case consultants will review your particular situation and guide you through the testing process.

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Y-STR Profile (per person) for Non Standard Sample

Male-specific test for non-standard sample; 10 business day turnaround, upon receipt of all samples. Note: Price may vary depending on the complication of the project. Contact us for details!

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Y-STR Profile (per person) for Swab Sample

Male-specific test; FREE delivery of DNASwabTM DNA Sample Collection Kit; 5-7 business day turnaround, upon receipt of all samples.

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*Prices valid only in the USA
*Prices outside the USA vary by country
 Y-STR Test Summary  
The Steps are as follows:
1. Order DNA Test
Order your test online or call our DNA specialists at toll free 800-DNA-EXAM (800-362-3926) to request your FREE DNASwabTM DNA Collection Kit. For legal tests, please call to make appropriate arrangements.
2. Collect DNA Samples & Return
Collect buccal swab DNA samples from male individuals to be tested with the DNASwab DNA collection kit. Return the complete kit to our lab.
3. Receive Results
Results will be available within 5-7 business days of our receipt of all samples and will be mailed to the authorized designee(s).
*For detailed instructions, click here
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"I just want to thank the continued professional and courteous service your Customer Service team provided me during the stressful waiting period for the DNA results. I contacted both your phone support and instant chat support teams at least twice and received concerned support each time. Never did I feel like they thought I might be calling too much and needed to be more patient. I truly appreciate their consideration and patience during this time."
  Toni, January 2011  
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