![]() The following tests will offer more accurate results: ![]() There are many better tests available to determine the relationship between alleged relatives. What Are The Testing Options Between Cousins? We do not recommend carrying out a cousins test with any company. Genetically speaking, we actually share a lot of DNA with any random individual and if cousins have any common DNA, it would be impossible to determine whether this is due to random chance or to inheritance.Īlthough some companies do offer cousin DNA testing, these companies cannot offer a conclusive results as current DNA testing technologies have not made this possible. ![]() With just 12.5% of common DNA between first cousins, a test result showing common DNA between the two is likely just due to chance. ![]() Already tests such as aunt/uncle testing, where test participants share 25% of their genetic makeup, can be challenging for laboratories because of the relatively low percentage of common DNA between aunts and uncles and their nieces or nephews. This means that 87.5 % of the genetic makeup between first cousins is different. When it comes to first cousins, these share only about 12.5% of their genes. Aunts and uncles will share around 25% of their genes with their nieces or nephews. For example, we know that children share around 50% of their genes with their biological mother or father. Why Is Cousin DNA Testing Inaccurate?Ĭousin’s DNA testing is inaccurate due to the inheritance pattern of genes in a family. The reason for this is that a cousins DNA testing will invariably provide a very inconclusive result. International Biosciences receives many requests for cousin testing but does not currently offer it. An Aunt/Uncle test, or a Sibling Test, are also good options to help determine Paternity.A cousin DNA test seeks to establish whether first degree cousins are biologically related. If neither parent is available to test, there are other relatives that may be able to provide a result, but the accuracy decreases the further away the relative is biologically from the father. Testing both parents will help strengthen the accuracy of the result, but even just one parent would be extremely helpful. The best people, if available, are the father’s biological parents (your child’s grandparents on the father’s side). If none of these samples are available, then the next best option is to test close relatives of the Father. If you’re not sure whether an item would be good to test or not, call us at 866.232.7660 and we’ll help you decide. These are going to be the next best thing to provide a conclusive Paternity Test. You may have other samples of the Father’s DNA, such as his blood, hair, fingernail or toenail clippings, or things of this nature. In these cases, we would look to “non-standard” methods of DNA Testing. It’s quick, painless, and incredibly accurate.īut sometimes it’s not that simple, such as when the Father is Deceased. This collects a large amount of easily verifiable DNA. It’s a special device that looks like a long Q-Tip, and you brush this against the inside of both cheeks. Our preferred method for collecting DNA samples is the Buccal Swab. ![]()
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