Identify the neutral amino acid from its three-letter symbol

The same question, asked 2 times: 20 Apr 2025 S2*, 26 Apr 2025 S1. Every wording below, oldest first.

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Question 1
20 Apr 2025 S2
86 $Identify neutral amino acid from following list represented by three letter symbols.$
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Question 2
26 Apr 2025 S1
54 $Identify neutral amino acid from following list represented by three letter symbols.$
Tap an option to check your answer.