試題詳解

40. The ENCODE project revealed that a large portion of the genome is transcribed into RNAs, far more than can be accounted for by protein-coding genes. What is a likely role that these RNAs might play?
(A) Serve as templates for protein synthesis
(B) Catalyze metabolic reactions in the cytoplasm
(C) Act as structural components of ribosomes
(D) Transport amino acids to the ribosome
(E) Regulate gene expression by blocking translation or causing degradation of mRNA