Remember it was just
one family. [2 generations - father and his 8 children]
Plus... they're talking about a gene mutation in this particular family.
The other mutation that comes to mind was the SLITRK1 gene.
http://www.ninds.nih.gov/news_and_ev...ene_121505.htm
e.g.
Quote:
|
Variation in the SLITRK1 gene (609678) on 13q may also be associated with Tourette syndrome in some cases.
|
http://omim.org/entry/137580
I hear you.