Chapter 6: Part 5

Question 1

what is Young’s trichromatic (three-color) theory?

Answer 1

proposed that the eye detected different colors because it contained three types of receptors

Question 2

why did young propose this?

Answer 2

It was suggested by the fact that for a human observer any color can be reproduced by mixing various quantities of three colors judiciously selected from different points along the spectrum.

Question 3

what are the three colors?

Answer 3

blue cones, green cones, red cones

Question 4

how do genetic defects of color vision occur?

Answer 4

anomalies in one or more three types of cones

Question 5

what chromosome is involved with defective color vision?

Answer 5

X chromosome

Question 6

who is more likely to get color blindness?

Answer 6

men, since they have two X chromosomes and women have one

Question 7

what is protanopia?

Answer 7

confuse red and green, red cones are filled with green cone opsin

Question 8

what deuteranopia?

Answer 8

red and green are confused, green cones are filled red cone opsin

Question 9

what is tritanopia?

Answer 9

hues with short wavelengths are confused, blue cones are minimal or not present at all