問題詳情

8. Two amino acids of the standard 20 contain sulfur atoms. they are
(A) cysteine and serine
(B) cysteine and threonine
(C) methionine and cysteine
(D) methionine and serine
(E) threonine and serine

參考答案

答案:[無官方正解]
難度:計算中-1
書單:沒有書單,新增