What plasmid, usually in multiple copies in a prokaryote, is responsible for production of proteins to attack susceptible organisms?

Bacteria are capable of "sharing" genetic material that can be advantageous in certain environments. This type of gene transmission is an example of which of the following?

Which type of bacterial genetic recombination involves the use of a viral vector?

What type of phages facilitate specialized transduction?

The Frederick Griffith experiment showed that previously safe pneumococcus can become lethal when it incorporates DNA from the surroundings into its genome.

What type of genetic transfer was displayed in the Frederick Griffiith experiment?