Question : Night blindness results from the deficiency of____.
Option 1: Glucose
Option 2: Vitamin-E
Option 3: Vitamin-B2
Option 4: Vitamin-A
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Correct Answer: Vitamin-A
Solution : The correct answer is Vitamin-A .
Night blindness is caused by a deficiency of Vitamin-A. In this condition, the eye cannot visualize under dim light conditions; i.e., vision is unimpaired in broad daylight, but it is unclear under low light conditions. Green leafy vegetables, fish, dairy products, etc., are rich sources of Vitamin-A. Biologically, Vitamin-A is known as retinol.
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