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Question: Answered & Verified by Expert
Which of the following statements is incorrect about human eye?
BiologyNeural Control and CoordinationNEET
Options:
  • A The diameter of the pupil is regulated by the muscle fibres of iris under autonomic nervous system.
  • B The retina of human eyes has two types of cones which possess their own characteristic photopigments.
  • C The Fovea is a thinned-out portion of the retina where only cones are densely packed.
  • D Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin.
Solution:
1573 Upvotes Verified Answer
The correct answer is: The retina of human eyes has two types of cones which possess their own characteristic photopigments.
In the retina of human eyes, there are three types of cones (S-cones, M-cones and L-cones) that possess their own characteristic photopigments that correspond to red light (erythropsin), blue light (cyanopsin) and green light (chloropsin), which are primary colours.

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