試卷名稱:99年 - 99 國立臺灣大學_ 碩士班招生考試試題:生物化學(A)#127951
年份:99年
科目:研究所、轉學考(插大)◆生物化學
37. Several nucleotide bases undergo spontaneous loss of their exocyclic amino groups (deamination). Deamination of the nucleotide bases cytosine and 5-methylcytosine yields nucleotide bases:
(A) hypoxanthine and xanthine, respectively.
(B) uracil and thymine, respectively.
(C) uracil only.
(D) uracil and hypoxanthine, respectively.
(E) thymine and uracil, respectively.