If you want to know what a tetrachromat is : http://en.wikipedia.org/wiki/Tetrachromacy
Look at this picture if you want to know if you are a tetrachromat : http://www.google.co.uk/imgres?imgurl=http://www.blogadilla.com/wp-content/uploads/2008/06/tetrachromat-color-test.jpg&imgrefurl=http://www.blogadilla.com/2008/06/08/are-you-a-tetrachromat/&h=286&w=832&tbnid=TjTxf-bJL2p36M:&zoom=1&docid=shb5vftQDMu9MM&hl=en-GB&ei=77uNVMODJfLB7AaHuYH4Dw&tbm=isch&client=tablet-android-samsung&ved=0CCIQMygBMAE
Tertrachromacy is a genitic mutation in the eye having a 4th cone in the eye. It is a mutant version of the red cone ( orange or yellow cone ) , so sorry no UV vision.
if you enter to the link of the picture above ^^ you see three differnt colured plates ( red , orange and green) to a normal trichromat it looks all the same colur but if you see things like numbers and letters you might be a tetrachromat.
Chances of being a tetrachromat
●If you are a woman/female
●having a father or son with some form of red-green colur blindness ( protonopia ( red missing) or duternopia (green missing)
A tetrachromat can distinguish 100 million colurs rather than an average person who can distinguish 1 million .
Edit: post if you can see something in the picture
Edited 12/14/2014 16:46:16