Alu elements

From Biology-Online Dictionary | Biology-Online Dictionary

Alu elements

(Science: molecular biology) a set of closely related genetic sequences, each about 300 base pairs long, in the human genome.

there are 500,000 to 600,000 copies widely dispersed among all 46 chromosomes: They act as markers for human dna sequences, although their function in the genome is unknown. The dna fragments containing the alu elements are formed by digesting genomic dna with the restriction endonuclease Alu i.