• This test investigates a high number of DNA regions. Full or half siblings will differ in the amount of DNA that they share. A Full Sibling to Sibling test looks at so many pieces of your DNA that we can make an assesment of your relationship. For example, full siblings will have DNA matching EXACTLY between them in 40% of regions tests, whereas non related persons have DNA matching EXACTY in around 10% of regions tested.
• To have the Mother's DNA sample (from both or either sibling) drastically increases the accuracy of the test.

Summary of Sibling to Sibling Testing Costs: