Description
A Y-chromosome DNA test is also known as Y-STR comparison test. It is a way to find if two males share the same male ancestor. It’s used in paternity cases where the alleged father isn’t available. This test determine if a child is related to the alleged father’s male relatives who share a common paternal line. It’s even used between potential half-brothers. Interestingly, the mother’s DNA isn’t needed for this type of paternity test.
Understanding the Y-Chromosome DNA Test
Y-STR stands for Y Chromosome Short Tandem Repeats, found on the male-only “Y” chromosome. These genes play a role in male traits. Since the Y-chromosome passes from father to son with few changes, we analyze unique markers on it. We compare these markers’ DNA profiles to see if they match. Males related through their fathers will have similar Y-STR profiles, while unrelated males will differ.
Even though the Y-Chromosome is in males only, women can join indirectly. They can ask a biological male relative like a father, brother, paternal uncle, or grandfather to give a DNA sample.
The Accuracy of Y-Chromosome DNA Test
This test looks at the Y-chromosome’s genetic profiles. It’s 100% accurate in showing if males share a common male line or not. It won’t identify the exact relationship between them. The most accurate way to get DNA is a buccal swab. This process is explained in our Journey Genetic Testing Test Kit. Our AABB parent laboratory conducts all the testing.
Collecting A DNA Sample: Swabs and Alternatives
Our kit has detailed steps for collecting swab samples. But if that’s not possible, we test things like hair and toothbrushes. To learn more, click on Alternative Samples.
How Much Does A Y-chromosome DNA Test Cost?
We provide precise Y-chromosome DNA testing, comparing 22 genetic markers. Pricing depends on the number of males tested and the sample type. You can use our testing kit or create your own for faster results, especially if you need non-swab samples tested.
Number Of People Testing
- Two males – $179.00
- Three males – $289.00
- Four males – $399.00
- Non-standard DNA sample (each) – $100
