I guess color blind is from missing one of the cones. It's most common for people to have red-green color blind. I think it may be because M cone and L cone as so close to each other, and thus it's more likely for them to get confused.
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I guess color blind is from missing one of the cones. It's most common for people to have red-green color blind. I think it may be because M cone and L cone as so close to each other, and thus it's more likely for them to get confused.