試卷名稱:104年 - 104 國立清華大學_碩士班入學考試_生命科學院甲組、醫學生物科技學程:分子生物學#126360
年份:104年
科目:研究所、轉學考(插大)◆分子生物學
27. Which of the following descriptions about the polyadenylation signal in mammalian cells is true?
(A) AAUAAA is the most frequent and active sequence.
(B) The polyadenylation signal is followed 23-24 bp later by a UC-rich motif and then by a C-rich motif.
(C) The cleavage/polyadenylation site is within the polyadenylation signal sequence.
(D) The cleavage/polyadenylation site is within the U-rich motif.