Multiple choice general knowledge science & technology

_________ deficiencies result in to inability to distinguish any colors as a result of absent or nonfunctioning retinal cones.

  1. Dichromacy

  2. Deuteranopia

  3. Rod monochromacy

  4. Protanomaly
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rod monochromacy (achromatopsia) is a condition where all three types of cone photoreceptors are absent or nonfunctional. With only rod cells working, the person cannot distinguish colors and sees only in shades of gray, along with poor visual acuity in bright light.

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