阿摩線上測驗
登入
阿摩線上測驗
登入
試卷名稱：112年 - 112 國立台灣大學_碩士班招生考試：生物化學(A)#120581
年份：112年
科目：研究所、轉學考(插大)◆生物化學
2. FLAG-tag is often introduced to a protein for Western blotting, immunoprecipitation, or recombinant protein purification. It consists of an amino acid sequence DYKDDDDK. When a FLAG-tag is introduced a recombinant protein, how would it affect the net charge of the recombinant protein when buffered at neutral pH?
(A) +4
(B)+1
(C)-2
(E) -5
(D)-3
