Byriztagar Everyday Science Mcqs

Which of the following elements are present in all proteins? 1. Carbon 2. Hydrogen, 3. Oxygen or 4. Nitrogen

A. 2 and 3

B. 1, 2 and 4

C. 1, 3 and 4

D. 1, 2, 3 and 4

Updated by: Toheed Ahmed