問題詳情

4. Which of the standard amino acids is achiral?

(A) Lysine
(B) Proline
(C) Valine
(D) Alanine
(E) Glycine

參考答案

答案：E
難度：簡單0.769231
統計：A(0),B(1),C(0),D(2),E(10)