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What is colour blindness ? Give reason for this defect ?

What is colour blindness ? Give reason for this defect ?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 6606 Points
14 days ago
Some people cannot distinguish between the different colours. This is known as colour blindness. Colour blindness is due to the absence of cones on the nerve endings on the retina.

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