Final answer:
Color blindness occurs when one or more cone pigments are missing or not functioning properly. Studying individuals with color blindness in one eye or different types of color blindness in each eye can provide insights into cone functioning and color vision mechanisms.
Step-by-step explanation:
Color blindness occurs when one or more cone pigments are missing or not functioning properly. This condition is called color deficiency or color vision deficiency. If one cone pigment is missing, a person may have trouble distinguishing certain colors. For example, if the red cone pigment is missing, they may have difficulty distinguishing between red and green.
Studying individuals who are color blind only in one eye or who have different types of color blindness in each eye can provide valuable insights into the functioning of the cones and the mechanisms of color vision. By comparing their experiences with individuals who have normal color vision, researchers can better understand the role of different types of cones and how they contribute to color perception.