With regard to cones, the principle of univariance states that the absorption of one photon of light results in:
A) a varied response, depending on the intensity of light.
B) the same response, regardless of the wavelength of light.
C) a varied response, depending on the wavelength of light.
D) the same response, regardless of the intensity of light.

Question

Quizplus · Accepted Answer

The principle of univariance refers to the fact that a cone cell's response to the absorption of a photon is the same, regardless of the photon's wavelength. This means that the cone cannot distinguish between wavelengths based on the response to a single photon; it only detects the presence of light, not its color.

With Regard to Cones, the Principle of Univariance States That