| I. Carbon | II. Hydrogen |
| III. Oxygen | IV. Nitrogen |
A) II and III
B) I, II and IV
C) I. Ill and IV
D) All of these
Correct Answer: D
Solution :
[d] Protein is formed by the combination of carbon, hydrogen, oxygen, nitrogen, phosphorus and sulphur. Phosphorus and sulphur is present in very small amount.
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