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Concept Breadcrumbs

Preferred Term:

interspersed repetitive sequences

Definition:
Copies of transposable elements interspersed throughout the genome, some of which are still active and often referred to as "jumping genes". There are two classes of interspersed repetitive elements. Class I elements (or retroelements - such as retrotransposons, retroviruses, long interspersed nucleotide elements and short interspersed nucleotide elements) transpose via reverse transcription of an RNA intermediate. Class II elements (or DNA transposable elements - such as transposons, Tn elements, insertion sequence elements and mobile gene cassettes of bacterial integrons) transpose directly from one site in the DNA to another.
Concept Schemes:
NALT Core
NALT Full
Broader Concept:
Narrower Concepts:
Entry Terms:
  • jumping genes
  • mobile genetic elements
  • dispersed repetitive sequences
URI:
https://lod.nal.usda.gov/nalt/254147
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RDF/XMLCreated 2015-05-29, last modified 2015-11-16