Question

The complementary mRNA sequence for AAGTCA is:

A) TTCAGT
B) UUCAGT
C) UUCUGT
D) UUCAGU
E) TTCAGU

Answer 1

UUC AGU

Step-by-step explanation:

To find the complementary mRNA sequence you need to match each base of the DNA to the complementary base on the RNA. In DNA, A matches T and G matches C. However, the base T is not found in RNA, instead, it is replaced with U. So in mRNA, A matches to U. Finally match each base up to get UUC AGU.