The trichromatic theory provides the best explanation for red-green color blindness.

Question

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The trichromatic theory states that there are three types of photoreceptor cells in the eyes that are sensitive to different wavelengths of light, and that these colors can be sensed by the brain through their combination. Red-green color blindness occurs when one or both of the photoreceptor cells that are most sensitive to either red or green light are missing or not functioning properly, supporting the trichromatic theory.

The Trichromatic Theory Provides the Best Explanation for Red-Green Color