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teilo
on Oct 4, 2020
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Color blindness
Not possible. Tetrachromates have to have two X chromosomes, which means that almost all tetrachromates are women. In rare cases, a man can have two X chromosomes, but I'm definitely one of them.
teilo
on Oct 8, 2020
[–]
Of course I meant to say "
not
one of them."
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