-advertisement-
10%

And finally, can you see a number in the circle?

Fact Lab

-advertisement-

Interesting fact:

Because of the way genetic inheritance works, a man cannot pass red-green colorblindness to his sons and a woman will always pass red-green colorblindness to her sons. This is the most common form of colorblindness with 99% of colorblind people suffering from it.

-advertisement-