• Anamnesis@lemmy.world
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          1 year ago

          I’m heterozygous for cystic fibrosis. It fucked my plans for having kids, cause I don’t have vas deferens. (Most people who are heterozygous don’t have any problems, but some men do with fertility). But apparently heterozygous people are more resistant to cholera and dysentery, since our cells hold onto water easier.

    • Lojcs@lemm.ee
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      1 year ago

      According to wikipedia, tetrachromacy is caused by having having both normal vision and red-green color blind genes in different chromosomes, so some of the red or green cones end up being receptive to a wavelength between red and green. Rods don’t sound affected.

      Health line article doesn’t mention the wavelength. Got me excited that it was infrared or something

    • jadero@lemmy.ca
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      1 year ago

      Same with my dad. He said that the military liked red/green colour blindness for spotting camouflaged stuff.

        • asteriskeverything@lemmy.world
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          1 year ago

          That’s fun!! I am not color blind and was able with a lot of work to sort of see some of them. The easiest is the second one just squint and unfocus if you wanna try. The first one I couldn’t get to work at all though

          • nogooduser@lemmy.world
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            3 months ago

            I am colour blind and the first one was the easiest to see by far. My wife couldn’t make it out even when I showed her where the lines were.

        • edgemaster72@lemmy.world
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          1 year ago

          Great, I’m too color blind for the normal tests, and not color blind enough for this apparently. Fuckin dots man.