Which of the Following Describes the Function of an Enzyme

Multiple Choice

Which of the following describes the function of an enzyme known as Dicer?

A) It degrades single-stranded DNA.
B) It degrades single-stranded mRNA.
C) It degrades mRNA with no poly-A tail.
D) It trims small double-stranded RNAs into molecules that can block translation.
E) It chops up single-stranded DNAs from infecting viruses.