Analysis
of the DNA of two separate individuals can provide information as
to whether they are full siblings, half siblings, or not related.
However, unlike paternity testing which provides very conclusive
results: 100% for non-paternity and greater than 99.9% for paternity
inclusion, the answers provided by sibship testing are not always
so conclusive. Please fully understand the benefits and limitations
of the sibship test before ordering. The cost for a complete DNA
Sibship Test is $3,100 HKD.
When
the issue of sibship is in question, the recommended method to determine
whether individuals are true biological siblings is to test their
parents. DNA paternity and maternity testing will provide conclusive
results. However, in situations where the alleged parents are unavailable
for testing, a DNA sibship test can be performed to analyze the
relationship of biological siblings.
Unlike
a DNA paternity test which will always provide a conclusive result,
sibship tests are different. When a sibship test is conducted, the
DNA laboratory will determine the genetic profile of the alleged
siblings. Based
on the type of genetic material inherited by each sibling, a sibship
index is determined. If the sibship index is less than 1.00, this
indicates non-relatedness. If the sibship index is greater than
1.00, this indicates that the two tested individuals are more likely
to be true biological siblings. The higher the value of the sibship
index, the greater the likelihood that the two individuals are true
biological siblings. To analyze the possibility that the siblings
share only one common parent versus two common parents (mother and
father), a half sibship index is obtained. The ratio of the half
sibship index versus the full sibship index would provide you with
an idea of whether the two individuals are more likely to share
only one common parent (e.g. mother only) or two common parents
(mother and alleged father).
Although
the sibship test will not provide you with a conclusive answer,
it may be able to provide you with an indication of whether you
are more likely to be or not to be the true biological sibling of
the other tested individual.
Greatest
Flexibility
If
you have a special request (e.g. split kit for testing in two different
cities, discreet shipping etc.) or if you are in a special situation,
contact us at 800-966-210 and our technical staff will be able to
assist you.
Test
Kit Guarantee
Genetrack
provides a 100% guarantee for its testing kits. Even if you lose
or damage the kit, Genetrack will replace it immediately at no cost.
Superior
Customer Service
Genetrack
guarantees complete client support throughout every stage of the testing
process. Genetrack is one of the largest testing laboratories in the
world. We are here to help you and we are confident that with our
experience, technology, and dedication to customer care, we will make
this experience as easy for you as possible.
Step 1 - Order the test
To
proceed with Sibship testing, you can choose to proceed immediately
online
or click
here to download our requisition forms (in pdf format) and
send them in by fax or mail. The kit can also be ordered by calling
our laboratory at 800-966-210. Once you order the Sibship test,
a sample collection kit will immediately be sent to the address
that you have specified for sample collection.
Step
2 - Collect the sample
The
Sibship Test kit contains all of the materials and step-by-step
instructions to collect a buccal swab sample from the parties involved
in the test. The DNA sample is collected by gently rubbing a soft
swab inside the mouth against the cheek for 10 seconds.
Step
3 - Submit the samples to the laboratory for testing
After sample collection, the swabs are returned to the laboratory
using the return package enclosed in the testing kit.
Step
4 - Wait for results
Once
our laboratory receives the samples, testing begins immediately
and results are available 3 to 5 days from the day that we receive
the samples. You may call our laboratory using your file number
and password to obtain your results over the telephone, or you may
check your results online. The formal documents will follow by mail
and / or E-mail (this is specified when you order your test.)
Experienced
Ph.D level scientists
