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home > DNA Testing Siblings

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DNA TESTING SIBLINGS

We have a range of quality paternity tests from our ISO-17025 Accredited laboratory. Prices below are for testing 2 persons. Often it is useful to include DNA from either parent or additional siblings to increase the accuracy of the test.

BROTHERS Y TEST - $295

Testing Brothers for the same father.

- All men have one Y chromosome which they pass to all their sons.
- By testing the Y chromsome in two or more brothers we can see if they have the same father.
- This DNA test is 99.9% accurate.

- Note: This test can be used to test a variety of male relations (ie. uncle-nephew, grandfather-grandson, etc.)
- You may order the free kit (paperwork, swabs and instructions), buy the test now, or else you can download instructions to take a brothers Y test right now.


or or

Recieve a FREE DNA kit in the mail

Only males have Y chromosome DNA.

Fathers pass their Y DNA to their sons, so the Y DNA in brothers with the same father is always identical.

 

SISTERS X TEST - $295

Testing Sisters for the same Father.

- All men have one X chromosome which they pass to all their daughters. By testing the X chromsome in two sisters we can see if they have the same father.
- This DNA test is 99.5% accurate.

- Note: This test is best for sisters with different mothers, or, if they have the same mother, then include the Mother's sample.
- Order the free kit (paperwork, swabs and instructions), buy the test now, or else download instructions for a Sisters X test now.


or or

Recieve a FREE DNA kit in the mail

The flow of X chromsome DNA from Father to daughters can be seen in the image above.

Sisters of the same father will share the exact same X.

 

MITOCHONDRIAL DNA TEST- $295

Testing siblings for the same Mother.

Mitochondrial DNA is only herited from the Mother, so it is the ideal test to see if siblings have the same biological mother.

The accuracy of the test depends very much on the type of mitochondrial DNA you have. If two matching persons have a rare type of Mitochondrial DNA then they are more likely to be siblings, than two persons who match with a common type of mitochondrial DNA. The probabilty of you being related is calculated after we know what type of DNA you have.

 

or or

Recieve a FREE DNA kit in the mail

Mitochondrial DNA is passed from Mother to children. Men have Mitochondrial DNA but they do not pass it on. Mitochondrial inheritance explained.

 

FULL SIBLING TEST - $395

Testing siblings for the same Mother and Father

- If you need to test a brother and sister for the same father, then you will need to do a full sibling DNA test. This test is only around 80% accurate, and looks at the amount of DNA sharing between siblings. Accuracy is drastically increased with DNA from other siblings or the mother, please contact us to disuss.
- Siblings share more DNA than do unrelated persons.

- Order the free kit (paperwork, swabs and instructions), buy the test now, or else download instructions for a Sisters X test now.


or or

Recieve a FREE DNA kit in the mail

The full sibling DNA test works by analysing DNA in each sibling and calculating the likihood of them being related or not.

 

Questions? Chat with us now.

Click here to have your questions on DNA testing answered.

 

ISO 17025 Accredited

 

AA Rated Company

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

DNA SOLUTIONS - QUALITY DNA TESTING SERVICES