What functional characteristics make viruses useful for genetic research

bacteriophages are very good at injecting foregin DNA into bacteria Genetic Engineers use them to introduce DNA of interest to humans in bacteria

The characteristic feature of the virus to infect the living organism makes it useful for genetic research.

Explanation:

Certain viruses are regularly utilized as vectors in genetic research since they can convey the new quality by infecting the cell. They are modified genetically to make them as vector in such a manner that the virus acts only as the vector and doesn't cause any disease to the living cell. As vector virus injects their hereditary material with new gene into a chromosome in the human cell and starts to replicate.