trichromacy

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trichromacy

 [tri-kro´mah-se]
anomalous trichromacy anomalous trichromatic vision.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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Trichromatic vision, often described inappropriately as 'red', 'green'and 'blue', is derived from three cone classes which contain photopigment with relatively long (L), medium (M) and short (S) wavelength spectral sensitivity.
Colour vision deficiency part 1--an introduction
Humans, apes, and Old World monkeys have trichromatic vision, which allows them to distinguish between blue, green, and red.
A Red State Advantage?
Jacobs of the University of California, Santa Barbara and his colleagues reported that both male and female howler monkeys--New World primates that eat primarily leaves--have fully trichromatic vision. The monkeys all have a second opsin gene on their X chromosome.
Visionary research: scientists delve into the evolution of color vision in primates

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