DNA上某段碱基顺序5'；-ACTAGTCAG-3'；，转录后的mRNA上相应的碱基顺序为

A.5'；-CAGCUGACU3'

B.5'；-CUGACUAGU3'

C.5'；-TGATCAGTC3'

D.5'；-UGAUCAGUC3'

E.5'；-CTGACCTAGT3'

正确答案：5'；-CUGACUAGU3'