Description
Home DNA Siblingship Test
Have questions? Click here to chat with customer representative!
Our DNA sibling test, two children are tested to determine whether they share the same biological parent or parents. Full siblings are individuals who have the same biological mother and the same biological father. Half siblings share only one parent. Since siblings have the same parent(s), they have matching genes much more often than do two unrelated individuals. When matches between two potential siblings are found, calculations are made to determine the probability that a sibling relationship exists. Our test for siblings is a very useful and informative test. However, testing additional known family members (in addition to the potential siblings) greatly improves the accuracy of this DNA test.
When the issue of siblingship is in question, the recommended method to determine whether individuals are true biological siblings is to test their parents. In situations where the alleged parents are unavailable for testing, a DNA siblingship test can be performed to analyze the relationship of biological siblings. Including one common parent greatly increases the accuracy of this type of analysis and is recommended if at all possible.
Unlike a paternity test which will always provide a conclusive result, siblingship tests are different. When a siblingship 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 siblingship DNA index is determined. If the siblingship DNA index is less than 1.00, this indicates non-relatedness. If the siblingship DNA 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 siblingship DNA 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 siblingship DNA index is obtained. The ratio of the half siblingship DNA index versus the full siblingship DNA 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).
Buccal Swab:
Buccal is the "Cheek Swab" Test. A buccal swab is soft and resembles a large Q-Tip. It is used to collect a sample of cheek cells by simply rubbing the inside of the cheeks. It is as accurate as blood, as the DNA is the same. A person should, however, abstain from drinking coffee for a few hours before taking a sample, and smokers should rinse and brush their cheeks with a toothbrush before swabbing.
How to collect buccal swab:
The inside of the cheek of each person being tested is gently wiped with a soft sterile swab. Swabbing a cheek is a safe, easy way to collect the sample. Each sample is then sealed in its own envelope, labeled for identification purposes and sent to our lab for processing.
Except for infants and very young children, each person collects his or her own samples; the collection process is simple. Buccal sampling takes about 45 minutes for 3 people, with an additional 60-90 minutes for the swabs to dry.
Blood Collection:
If you're considering the blood option, it is quite important that you contact your physician for the collection of blood samples for children under 8 years of age. We offer this option because it is much faster and easier for you to collect. The procedure involves a small lancet that is used to lightly pierce a finger (most don't even feel it). A small drop of blood is then transferred to a collection card - that's it.
What does DNA mean? What is DNA? Does the paternity test have to be done in a laboratory? Are your paternity tests dependable? How does the paternity test work? What is the meaning of a court-admissible paternity test? What collection methods for my paternity test are available? How can I get my paternity test results? Are my paternity test results confidential? How do you ensure that paternity tests are performed correctly? What is the difference between an AABB (American Association of Blood Banks) accredited laboratory tests and a non-accredited laboratory tests?
Is there an age limit for the DNA test? Do DNA test samples have to be collected at the same time? How does the Home Test Kit work? What is a buccal swab collection, what is blood collection? When will the laboratory test results be available? Can my home test results be used in court? Are results from the Home Test Kit admissible in court? Is the legally-binding home test different from the informational home test? How accurate are the paternity test results? What standards are used to ensure paternity tests are performed correctly? What is the difference between an AABB accredited paternity test and an unaccredited paternity test? What age can DNA testing be done? What about blood testing for DNA tests? Must all the blood samples be collected at the same time?
Detailed Description
Our siblingship DNA test is a great way to find out the bloodlines of your family. If you want to know whether or not your brother or sister is really your biological sibling, our testing kits are right for you. This DNA test works by taking a cotton swap sample of saliva from two children or individuals thought to be siblings. The samples are then sent to our laboratory for analysis. You will receive results from us within 5-7 business days. We can help you find out if you share one parent or both or neither at all.
Related Information
Do you want to find out whether you brother or sister is your truly biological sibling, than you've come to the right place to get the most accurate and reliable result.Our DNA sibling test, two children are tested to determine whether they share the same biological parent or parents. Full siblings are individuals who have the same biological mother and the same biological father. Half siblings share only one parent. Since siblings have the same parent(s), they have matching genes much more often than do two unrelated individuals. When matches between two potential siblings are found, calculations are made to determine the probability that a sibling relationship exists. Our test for siblings is a very useful and informative test. However, testing additional known family members (in addition to the potential siblings) greatly improves the accuracy of this DNA test.
When the issue of siblingship is in question, the recommended method to determine whether individuals are true biological siblings is to test their parents. In situations where the alleged parents are unavailable for testing, a DNA siblingship test can be performed to analyze the relationship of biological siblings. Including one common parent greatly increases the accuracy of this type of analysis and is recommended if at all possible.
Unlike a paternity test which will always provide a conclusive result, siblingship tests are different. When a siblingship 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 siblingship DNA index is determined. If the siblingship DNA index is less than 1.00, this indicates non-relatedness. If the siblingship DNA 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 siblingship DNA 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 siblingship DNA index is obtained. The ratio of the half siblingship DNA index versus the full siblingship DNA 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).
Instructions
Collection Methods: Buccal Swab:
Buccal is the "Cheek Swab" Test. A buccal swab is soft and resembles a large Q-Tip. It is used to collect a sample of cheek cells by simply rubbing the inside of the cheeks. It is as accurate as blood, as the DNA is the same. A person should, however, abstain from drinking coffee for a few hours before taking a sample, and smokers should rinse and brush their cheeks with a toothbrush before swabbing.
How to collect buccal swab:
The inside of the cheek of each person being tested is gently wiped with a soft sterile swab. Swabbing a cheek is a safe, easy way to collect the sample. Each sample is then sealed in its own envelope, labeled for identification purposes and sent to our lab for processing.
Except for infants and very young children, each person collects his or her own samples; the collection process is simple. Buccal sampling takes about 45 minutes for 3 people, with an additional 60-90 minutes for the swabs to dry.
Blood Collection:
If you're considering the blood option, it is quite important that you contact your physician for the collection of blood samples for children under 8 years of age. We offer this option because it is much faster and easier for you to collect. The procedure involves a small lancet that is used to lightly pierce a finger (most don't even feel it). A small drop of blood is then transferred to a collection card - that's it.
Frequently Asked Questions
DNA & Genetics
DNA & Paternity
