Question

Chief functions of the rods and cones in the eye of a vertebrate

• A. Rods are involved in colour vision and cones in distinguishing intensities of light.
• B. Rods are important for vision in dim light and cones in bright light
• C. Rods are important for vision in bright light and cones in dim light.
• D. Rods and cones are both important for vision in dim light

Answer 1

Answer: (B)

Rods are important for vision in dim light and cones in bright light

• Rod cells are the photoreceptor cells present in the retina of the eye which functions in less intense light or dim light.
  
• Cone cells are the photoreceptor cells present in the retina of eyes which are responsible for the color vision that functions in the relatively bright light.

The correct answer is OPTION B.