Catalysis of the transposition of transposable elements or transposons. Transposases are involved in recombination required for transposition and are site-specific for the transposon/transposable element. [GOC:bm, ISBN:0198506732]
Process by which a transposable element is excised from the donor site and integrated at the target site without replication of the element. Also referred to as cut-and-paste transposition. [GOC:bm, PMID:2553270]
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. [GOC:go_curators]