A

Admin • 828.03K Points
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Q. Which of the following elements is always present in proteins?

  • (A) Carbon, Hydrogen, Oxygen, and Nitrogen
  • (B) Carbon, Hydrogen, and Oxygen only
  • (C) Carbon and Hydrogen only
  • (D) Carbon, Hydrogen, Oxygen, and Phosphorus
Explanation by: Admin
Proteins always contain nitrogen in addition to carbon, hydrogen, and oxygen.

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