Quote:
Originally Posted by Kolja
I'm 73 and have near perfect color discrimination. According to one online color challenge site, 1 out of 255 women and 1 out of 12 men have some form of color vision deficiency. Go to xrite.com to take the Color Challenge test for fun.
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Now I'm wondering what a tetrachromat would see. Statistically speaking, there's probably at least one woman on this forum who's a tetrachromat, but she probably doesn't know it (how often do you realise that you can see colours that nobody else can, without telepathy?). I wonder if she hates her Kindle screen.
(Men are very rarely tetrachromats: you need to be heterozygous for OPN1MW1 / OPN1MW2, and since these are alleles of OPN1MW on the X chromosome, you could only manage to be one while male by being XXY rather than XY. No male tetrachromats have ever been identified, but admittedly we've only been looking for female ones for a few years.)