How does transfection occur?

Transfection is a crucial technique in molecular biology that involves the introduction of nucleic acids, such as DNA or RNA, into eukaryotic cells. This process is fundamental for various purposes, including studying gene expression, protein function, and developing genetic modifications such as transgenic organisms. By successfully introducing foreign genetic material into the cells, scientists can induce the production of specific proteins or conduct gene silencing experiments.

The focus of transfection is on the delivery and expression of nucleic acids, which can greatly facilitate research in genetics, biotechnology, and therapeutic development. This makes the option regarding the introduction of nucleic acids into cells the definitive answer to the question about how transfection occurs.