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      Question

      Deficiency of which of the following leads to night

      blindness?
      A Vitamin A Correct Answer Incorrect Answer
      B Vitamin B Correct Answer Incorrect Answer
      C Vitamin E Correct Answer Incorrect Answer
      D Vitamin K Correct Answer Incorrect Answer

      Solution

      A deficiency of Vitamin A leads to night blindness. People with night blindness have normal vision when adequate light is present but poor vision in the dark. Vitamin A is necessary for the production of retinal, a component of rhodopsin, which is crucial for vision in low light conditions.

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