Question 5

(Multiple Choice)

Comparing mRNA molecules from human and Escherichia coli cells, which of the following is typically NOT true?


A) A human mRNA has a special 5' cap, while a bacterial mRNA does not.
B) A human mRNA has a poly-A tail, while a bacterial mRNA does not.
C) A human mRNA undergoes alternative splicing, while a bacterial mRNA does not.
D) A human mRNA contains noncoding sequences, while a bacterial mRNA does not.
E) A typical human mRNA encodes one protein, while many bacterial mRNAs encode several different proteins.

Answer