What is the approximate mass of a protein containing 200 amino acids? (Assume there are no other protein modifications.)
A) 20,000
B) 11,000
C) 22,000
D) 222,000
E) None of the above.

Question

Quizplus · Accepted Answer

The average mass of an amino acid is approximately 110 Da (Daltons). Therefore, a protein containing 200 amino acids would have an approximate mass of 22,000 Da (200 x 110). Choice (C) is the only option that matches this value.

What Is the Approximate Mass of a Protein Containing 200