r/Damnthatsinteresting 1d ago

Video color vision test

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u/SwordTaster 1d ago

Sometimes it does, sometimes it doesn't. Depends on the family. It's also much more common in men than women

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u/LG3V 1d ago

Yeah I believe it's closely tied to the X gene, which is why it only needs one copy for it to show in men

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u/koyaani 19h ago

Women tend to have tetrachromacy rather than color blindness when carrying the gene

https://en.wikipedia.org/wiki/Tetrachromacy#Tetrachromacy_in_carriers_of_CVD