A person with a deficiency in only one of the colour systems, such as red-green, would be considered a ___________, whereas someone who is colour-blind in both of the colour systems is labelled a _____________.

Question

Quizplus · Accepted Answer

Dichromacy refers to a deficiency in one of the three color systems, typically resulting in difficulty distinguishing between red and green or blue and yellow. Monochromacy, on the other hand, is a condition where an individual cannot perceive any color at all, effectively seeing the world in shades of gray, indicating a deficiency in both of the color systems.

A Person with a Deficiency in Only One of the Colour