Quick practice
Question 1 of 5
In all protein which of the following elements are present?
1. Sulfur
2. Hydrogen
3. Oxygen
4. Nitrogen
Which of the above options is /are correct?
A
1, 3 and 4
B
1,2, 3 and 4
C
2 & 3
D
1, 2 and 4
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