Abstract
The first RNA molecules to be discovered were those involved in protein synthesis, mRNA, transfer RNA (tRNA), and ribosomal RNA (rRNA). In recent years, a vast number of additional RNA molecules have been identified. ‘RNA’ explains that these are non-coding RNAs that are not involved in protein synthesis, but influence many normal cellular and disease processes by regulating gene expression. RNA interference (RNAi) as one of the main ways in which gene expression is regulated is described with applications to therapy. Classes of RNA, including long non-coding RNAs and catalytic RNAs, are explained along with RNA techniques used to study RNA molecule and gene function.
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