A DNA test for twins costs just $119 and can be ordered direct from our website.
Also known as zygosity testing, twin testing is an easy way to determine whether multiple children from the same birth are genetically identical or not. The test itself is very straightforward. A testing kit is mailed to your home, which includes full instructions and swabs to collect the DNA samples. These swabs need to be rubbed on the inside of each twin’s cheek to collect buccal cells. When the swabs are returned to our laboratory for testing, our scientists extract the DNA from these cells. They then examine specific markers, known as Short Tandem Repeat (STR) loci, present in repeat sections of the DNA samples. The DNA seen at each of these markers is compared between the tested individuals. Identical twins will share the same DNA profile whereas non-identical twins will have different DNA profiles.
This DNA test can also be used to test more siblings to establish whether higher multiples are identical or non-identical (such as triplets and quadruplets, etc). You can add more siblings to the test when ordering online.
Whether or not twins and higher multiple babies are identical depends on how the babies were formed. Non-identical siblings are the result of separate fertilized eggs. These babies are no more alike than any other brothers or sisters, and may be both male, both female, or one of each. They share DNA in common as in the case of siblings from different births.
Identical siblings are formed from a single fertilized egg, which went on to split into separate embryos. This means their DNA is exactly the same.
The twin testing certificate will be emailed back to you in 3–5 days stating whether your twins are identical or not and showing which DNA markers matched.
An increasing and novel use of a twin test is to use the DNA profile to create a unique gift for new parents, their children, and friends and family. The DNA profile can also be made into exclusive artwork. For more information on Twin testing, please contact AlphaBiolabs via Live Chat or call now at 727-325-2902.