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Question

The pigment retinal is a derivative of _________. 


A
vitamin A
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B
vitamin B
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C
vitamin D
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D
vitamin E
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Solution

The correct option is D vitamin A
Retinal is an aldehydic pigment which is present in the photoreceptors in the eyes. Retinal combines with the protein opsin to form rhodopsin and photopsin and helps in low-light as well as colour vision. Retinal is derived from an alcoholic compound retinol, which is one of the types of vitamin A.

Biology

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