試題詳解

25. Which of the following statements related to noncoding RNA is/are TURE:
(A) The noncoding RNA represent RNAs that are not coded for proteins, including tRNA and ribosomal RNAs
(B) Noncoding RNAs can be made by all three types of RNA polymerase
(C) MicroRNAs are made by RNA polymerase I
(D) Nucleotides in both ribosomal RNA and tRNA are heavily modified.
(E) microRNA regulate gene expression is most often at their DNA level