TERMIUM Plus®

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EXPANSION REPETITIONS TRINUCLEOTIDES [1 record]

Record 1 2020-12-30

English

Subject field(s)
  • Genetics
CONT

During replication a trinucleotide repeat sequence can either expand or contract; if expanded beyond a critical copy number, gene function is compromised. Triplet repeat expansion is now recognized as a cause of several human diseases and as a mechanism of inheritance to explain the phenomenon of anticipation.

French

Domaine(s)
  • Génétique

Spanish

Campo(s) temático(s)
  • Genética
DEF

Repetición de una secuencia de tres pares de bases nitrogenadas, como la repetición CAG responsable del síndrome del cromosoma X-frágil, que va aumentando el número de copias a lo largo de varias generaciones.

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