Nonrepetitive DNA (Molecular Biology)

Nonrepetitive DNA is comprised of DNA sequences present in only one or in a small number of copies in a genome. It contrasts with repetitive DNA, especially Alu sequences, CpG Islands, Sines, Lines, microsatellite and minisatellite DNA. Nonrepetitive DNA has the reassociation kinetics expected from unique sequences and is characterized by a high ^t value. It generally consists of protein-coding genes or a plasmid in only one copy per genome.