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Question

Which of the following chemicals is converted in animals to vitamin D by ultraviolet radiation?

A
Erepsin
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B
Ergosterol
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C
Cholesterol
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D
Ascorbic acid
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Solution

The correct option is C Cholesterol
In humans, The major natural source of the vitamin is synthesis of cholecalciferol in the skin from cholestrol through a chemical reaction that is dependent on sun exposure (specifically UVB Radiation).
So, the correct option is C. ( Cholestrol )

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