Q20 · 2023 · Paper 1Unclassified1 mark
QUESTION 20
The structural formula for a polypeptide is shown.
Identify the three amino acids present from left to right.
(A) Arg, Cys, Met
(B) Asp, Cys, Ala
(C) Glu, Cys, Asp
(D) Ile, Cys, Gly
WORKED SOLUTION
1 markAnswer B
OFFICIAL ANSWERB
QCAA awards 1 mark for selecting option B.
Correct option from the official QCAA answer key.