RNA interference (RNAi) can be used by
A) researchers to induce the production of more mRNA.
B) researchers to artificially turn on gene expression.
C) viruses to stop the production of new proteins.
D) cells to prevent infections from double-stranded RNA viruses.

Question

Quizplus · Accepted Answer

RNA interference is a cellular mechanism that prevents infections from double-stranded RNA viruses. When the cell encounters double-stranded RNA, it is processed into small interfering RNAs (siRNAs) that can bind to complementary mRNA and prevent its translation into protein. This is the cell's way of defending itself against viral infections. Researchers can also harness this mechanism to knock down specific genes for experimental purposes, but it is not used to induce the production of more mRNA or artificially turn on gene expression. RNAi is not used by viruses to stop the production of new proteins, but rather it is a defense mechanism employed by cells against viral infections.

RNA Interference (RNAi) Can Be Used by