Night blindness is caused due to

Hypermetropia

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Myopia

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Defective cornea

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Deficiency of rhodopsin in rods

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Solution

The correct option is D Deficiency of rhodopsin in rods
Rhodopsin serves as a visual purple pigment of rod cells and is responsible for night vision. Rhodopsin deficiency causes night blindness. Myopia is caused by elongation of eyeball while shortening of eyeball causes hypermetropia. The cornea is the transparent anterior window of an outer layer of the eyeball and does not have rods. Thus, the correct answer is option D.

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Question 05(iv)

Fill in the blanks.
Night blindness is caused due to deficiency of ___ in our food.

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