The ability of the eye to see in the dark, is due to the production of a purple pigment known as

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Q: 90 (SSC/NA)
The ability of the eye to see in the dark, is due to the production of a purple pigment known as
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question_subject: 

Science

question_exam: 

SSC

stats: 

0,2,8,3,4,1,2

keywords: 

{'purple pigment': [1, 0, 0, 0], 'eye': [11, 1, 6, 5], 'carotene': [6, 0, 1, 0], 'rhodopsin': [2, 0, 0, 0], 'dark': [1, 0, 0, 2], 'iodopsin': [2, 0, 0, 0]}