Sequences of DNA or RNA that occur in multiple copies. There are several types: INTERSPERSED REPETITIVE SEQUENCES are copies of transposable elements (DNA TRANSPOSABLE ELEMENTS or RETROELEMENTS) dispersed throughout the genome. TERMINAL REPEAT SEQUENCES flank both ends of another sequence, for example, the long terminal repeats (LTRs) on RETROVIRUSES. Variations may be direct repeats, those occurring in the same direction, or inverted repeats, those opposite to each other in direction. TANDEM REPEAT SEQUENCES are copies which lie adjacent to each other, direct or inverted (INVERTED REPEAT SEQUENCES).

DNA whose role appears to be its own replication, e.g., transposable elements and some SATELLITE DNA.

D012091

Synonyms: Direct Repeat, Selfish DNA, DNAs, Selfish, Repetitive Sequences, DNA, Selfish, DNA Repetitious Region, Genes, Selfish, Repetitious Regions, DNA, Selfish Genes, Selfish Gene, Repetitive Region, Repeats, Direct, Nucleic Acid Repetitive Sequences, Repetitive Sequences, Nucleic Acid, Repetitive Sequence, Selfish DNAs, Gene, Selfish, Repeat, Direct, Repetitious Region, DNA, Repetitive Regions, Direct Repeats, DNA Repetitious Regions