In the study of DNA sequences, one can distinguish two main types of repeated sequence:
- Tandem repeats:
- Interspersed repeats:
- SINEs (Short INterspersed Elements),
- LINEs (Long INterspersed Elements). A DNA sequence or genetic sequence is a succession of letters representing the Primary structure of a real or hypothetical DNA Molecule Tandem repeats occur in DNA a pattern of two or more nucleotides is repeated and the repetitions are directly adjacent to each other Satellite DNA consists of highly repetitive DNA, and is so called because repetitions of a short DNA sequence tend to produce a different frequency of the Nucleotides This article is about the DNA sequence See also Miniaturized satellite for the size class of orbiting spacecraft A minisatellite is a section Microsatellites, or Simple Sequence Repeats (SSRs are polymorphic loci present in nuclear and organellar DNA that consist of repeating Interspersed repetitive DNA is found in all eukaryotic Genomes. Retrotransposons (also called transposons via RNA intermediates are genetic elements that can amplify themselves in a Genome and are ubiquitous components of the
The majority of LINEs are LINE-1 and the majority of SINEs are ALUs.
In prokaryotes, CRISPR are arrays of alternating repeats and spacers. CRISPR ( C lustered R egularly I nterspaced S hort P alindromic R epeats are direct repeats found in the DNA of many
See also
Eukaryotic chromosome fine structure refers to the structure of sequences for eukaryotic chromosomes
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