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A schematic presentation of ncRNA categories. NcRNAs contain a much larger portion of the human genome than protein‐coding RNA, which comprise <3% of the genome. NcRNAs are classified into housekeeping ncRNAs, and regulatory ncRNAs that are subdivided into small ncRNAs and lncRNAs based on transcript size. LncRNAs can be designated as sense, antisense, bidirectional, intergenic or intronic according to their genomic location relative to that of nearby protein‐coding genes
