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Which one of the following statements is...

Which one of the following statements is not correct ?

A

Retinal is a derivative of vitamin-C

B

Rhodopsin is the purplish red protein present in rods only

C

Retinal is the light absorbing portion of visual photopigment

D

In retina, the rods have the photopigment rhodopsin, while cones have three different pbotopigments.

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The correct Answer is:
A
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