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SISTER TO SISTER DNA TEST |
| (Click
Here to Order a Free Collection and Information Kit for Sister to
Sister testing) |
| There are two possibilities for DNA tests between sisters: |
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1.
X-chromosome testing. Testing 2 or more sisters for the
same father
This type of X-chromosome test is unique to DNA SOLUTIONS’ laboratories. DNA SOLUTIONS was the first company to offer DNA home testing kits, as well as paternity tests with superior accuracy. The company has now also introduced a testing method that allows a certain number of specific points to be tested on the X-chromosome. |
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- Accuracy of 99.9+%
- To establish whether or not two or more female
persons with different mothers have the same biological
father. The females being tested must have different
mothers because, if 2 daughters with the same mother had
an identical X chromosome, we would not know if this was
passed down by the mother or father.
- Women have two X-chromosomes. Men only have one X-chromosome,
which is always passed down to all their daughters. So
a father and his daughters will all have one identical
X-chromosome.
Note: If two women with different mothers
share the same X-chromosome, it does not guarantee they
had the same father, as they could have had different
fathers that were closely related. (i.e. their fathers
could have been brothers, cousins, etc.).
- If you wish to know if 2 sisters also have
the same mother, or you are not sure if they have different
mothers, you will require a Full Sibling to Sibling Test.
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Summary of X CHROMOSOME Testing Costs: £239 for 3 people (£75 for each additional person)
| Test type |
Accuracy |
Price |
Options |
| Test between Sisters (2 people) |
99.9% |
£239 |
or  |
| Test between Sisters (3 people) |
99.9% |
£239 |
or  |
| Test between Sisters (4 people) |
99.9% |
£314 |
or  |
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Summary of Full Siblingship Testing Costs: £379
| Test type |
Accuracy |
Price |
Options |
| Test between Sisters (2 people) |
90% |
£379 |
or  |
| Test between Sisters (3 people) |
95% |
£379 |
or  |
| Test between Sisters (4 people) |
99% |
£379 |
or  |
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