Y Chromosome Test

• To verify if two (or more) males share the same paternal line.
• To verify if two or more brothers have the same biological father.
• If you wish to know if two brothers also have the same mother, you will require a Kinship Test.
• Best option for a test between paternal grandfather and grandson.
• 23 DNA regions of the Y chromosome will be tested, providing an accuracy rate higher than 99.9999%.

The Y Chromosome Test can even be used to verify a different relationship between any two males in the same family (although always following the same paternal line), even if the alleged relationship is more distant. For example, a test between uncle and nephew, or a test between cousins.

How is the Y chromosome inherited?

Men have one Y chromosome and one X chromosome (while women have two X chromosomes and no Y chromosome).

The Y chromosome is inherited from father to son, as shown on the picture.

This means that all sons of the same father will present the same Y chromosome. Those sons will also pass that Y chromosome to their male children, so that grandfather and grandsons will also share that same Y chromosome.

However, it also means that, as all men in the same family have the same Y chromosome, this test cannot pinpoint the exact relationship on the individuals tested. And it also means that this test cannot be done when the individuals to test may have a blood relationship on the paternal side other than the one they seek to verify with the test.

Test	Accuracy	Cost	Order
Y Chromosome	99.9999%	£229	Buy Now Recorded delivery Shipping included Order Kit for £19 Pay the remainder later

You have 2 purchase options:

• Pay for the complete test now and receive the kit by recorded delivery mail at no extra cost. The kit is sent with a tracking number and delivered upon signature.
• Pay only a £19 deposit (deductible from the test price), and receive the kit by normal post. Pay the remainder when you send in your samples.