You are creating a genetic profile for your entire family…

…if you give away a genetic profile for yourself.  Elizabeth Joh (NYT) writes:

You may decide that the police should use your DNA profile without qualification and may even post your information online with that purpose in mind. But your DNA is also shared in part with your relatives. When you consent to genetic sleuthing, you are also exposing your siblings, parents, cousins, relatives you’ve never met and even future generations of your family.

Unless you are going to gain something very specific, I generally recommend that people should not give away their genetic information.

Keep reading this article on Marginal Revolution.

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