Repeated sequence (DNA)

In the study of DNA sequences, one can distinguish two main types of repeated sequence:

Tandem repeats:
Interspersed repeats:
- SINEs (Short Interspersed Nuclear Elements)
- LINEs (Long Interspersed Nuclear Elements)

In primates, the majority of LINEs are LINE-1 and the majority of SINEs are Alu's.

In prokaryotes, CRISPR are arrays of alternating repeats and spacers.

Other types of repeats

Note: The following are covered in detail in "Computing for Comparative Microbial Genomics".^[1]

Direct repeats
- Global direct repeat
- Local direct simple repeats
- Local direct repeats
- Local direct repeats with spacer
Inverted repeats
- Global inverted repeat
- Local inverted repeat
- Inverted repeat with spacer
- Palindromic repeat
Mirror and everted repeats

^ Ussery, David W.; Wassenaar, Trudy; Borini, Stefano (2008-12-22). "Word Frequencies, Repeats, and Repeat-related Structures in Bacterial Genomes". Computing for Comparative Microbial Genomics: Bioinformatics for Microbiologists. Computational Biology. 8 (1 ed.). Springer. pp. 133–144. ISBN 978-1-84800-254-8.

Genetics: repeated sequence

DNA transposon

MER1, MER2, Mariners