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USMLE · Question #134

Vitamin D is created from _________ by skin cells.

The correct answer is A. Dehydrocholesterol. See the full explanation below for the reasoning.

Question

Vitamin D is created from _________ by skin cells.

Options

  • ADehydrocholesterol
  • BCholesterol
  • CHydrocholesterol
  • DHydrodermis

How the community answered

(28 responses)
  • A
    71% (20)
  • B
    4% (1)
  • C
    14% (4)
  • D
    11% (3)

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