Answer:
The mechanisms of horizontal gene transfer are transformation, transduction, and conjugation.
Step-by-step explanation:
This process can allow different species of bacteria to become immune or pathogenic from the DNA of another. The eukaryotes have shown some level of DNA sequencing from bacteria- acrhaea.
The endosymbiosis of mitochondria and plastids is a form of horizontal gene transfer from bacteria to eukaryotes, for example.