Noncoding RNAs (ncRNAs) include any RNA that is not messenger RNA (mRNA), ribosomal RNA (rRNA), or transfer RNA (tRNA). The discovery of the first ncRNAs in the 1960s occurred because they were expressed in such high numbers. At the time, RNA was considered to function only as a means to express a gene, with all three of the main types of RNA being intimately involved in this process. Many of the ncRNAs discovered over the next twenty years were also discovered fortuitously, before any... więcej
Salem Press Encyclopedia of Health, 2019. 5p.