Answer:
The correct answer is conjugation, transduction, and mutation.
Explanation:
The genetic variation requires the transfer of genetic transfer between the two bacteria. In transduction and conjugation contact to the transfer of genetic material.
During conjugation, the transfer is mediated by a pilus that connects two bacteria cells. Conjugation permits bacteria to increase their genetic diversity.
During transduction, in infected bacteria viruses move short pieces of chromosomal DNA from one bacterium to another accidentally.
Mutation in bacteria has resulted in as missense, nonsense, silent, frameshift, lethal, suppressor or conditional lethal mutation.
Thus, conjugation, transduction and mutation process can increase the genetic diversity of bacteria and other prokaryotes.
