阿摩線上測驗
17. Which of the following bond-pairs within a peptide backbone show free rotation around both bonds?
(A) N-Cu and
N-C
(B) Cα-C and N-Cα
(C) C=O and N-C
(D) C=O and N-Ca
(E) N-C and Cα-C.
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統計： A(0), B(1), C(0), D(1), E(0) #3191427
統計： A(0), B(1), C(0), D(1), E(0) #3191427
