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"Gorlin's Sign" is the ability to touch the tip of the nose with the tongue. It is present in half of people with Ehlers-Danlos syndrome, but is also present in a minority of people without that disorder: among them, both me and one of my sons.

Is it known whether this trait is hereditary? If so, is it a simple genetic trait (e.g., is it sex-linked, Mendelian)?

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  • $\begingroup$ Can you please link to your source when you state It is present in half of people with Ehlers-Danlos syndrome, but is also present in a minority of people without that disorder? This source may be a good starting point to try to answer your question. $\endgroup$ – Remi.b Aug 23 '17 at 0:20
  • $\begingroup$ @Remi.b - I just added source of that statement (Wikipedia). $\endgroup$ – feetwet Aug 23 '17 at 1:26

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