試題詳解

34. Non-coding RNA. Which of the following descriptions about the non-coding RNA is not correct?
(A) Non-coding RNAs are classified into two major categories: structural and regulatory non-coding RNAs.
(B) Structural non-coding RNAs comprise of siRNAs and miRNAs.
(C) Regulatory non-coding RNAs are further divided into three classes, small, medium and long non-coding RNAs.
(D) Short non-coding RNA with a size between 20-50 nucleotides. Medium non- coding RNA with a size between 50-200 nucleotides.
(E) Long non-coding RNA with maximum regulatory potency containing greater than 200 nucleotides.