This window is an interface to the excellent CDS X-Match service provided by the Centre de Données astronomiques de Strasbourg (CDS).

The service is very fast, and in most cases it is the best way to match a local table against a large external table hosted by a service.

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In order to answer this question it is best if you upload your raw DNA data to Gedmatch.com, as this is the best way currently available to assess if there is a match on the X-chromosome.

Instructions on how to upload your results can be found here.

See Cookie Policy for more details including how to disable cookies.Buy gold for yourself to gain access to extra features and special benefits.A month of gold pays for 231.26 minutes of reddit server time!23and Me have an X-chromosome browser which can also be useful, and FTDNA is planning to introduce one at some point in 2013.A match on the X chromosome helps to limit the possible ancestral lines down which the DNA you share with your match could have passed.

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