This tattoo is located on my right wrist and is the logo seen on the new hit television series 'Heroes'. It has 3 meanings: 1 - it's half of a DNA double helix done in tribal styling. 2 & 3 - it means 'Godsend' and 'Special Ability' according to the tv shows script.
The artist was Jacek Minkowski of Avalon Tattoo in San Diego, CA. My wife has the same tattoo on her right wrist. We think of it as half of a DNA double helix. I have one half and she has the other.