試題詳解

11. In pH 7.0, A is a nonpolar amino acid. B is a positive-charged amino acid. C is a negative-charged amino acids. What's A, B and C?
(A) A: Leu, B: Arg, C: Asp
(B) A: Ala, B: Tyr, C: Thr
(C) A: Ser, B: Thr, C: Glu
(D) A: Cys, B: Lys, C: Gln