Transfection: technique of transferring DNA into somatic cells or germ lines of experimental animals so that the cells or progeny may express the integrated donor gene.
Transfection: The uptake of naked or purified DNA by CELLS, usually meaning the process as it occurs in eukaryotic cells. It is analogous to bacterial transformation (TRANSFORMATION, BACTERIAL) and both are routinely employed in GENE TRANSFER TECHNIQUES.
The following list attempts to classify Transfection into categories where each line is subset of the next.