Retrovirus once it has infected a cell, it converts its RNA into DNA by reverse transcription. This viral DNA is then inserted into the DNA of the host cell where it starts replicating. For e.g., Human Immunodeficiency Virus (HIV). Related Theory Difference Between Retrovirus and Virus Retrovirus These have RNA as genetic material.They undergo reverse transcription toconvert the RNA into DNA.DiplopodaInsectaOnychophoraMerostomaArachnidaVirus These have RNA and DNA as the genetic material.Only RNA viruses undergo reverse transcription.Head + thorax + abdomenHead + thorax + abdomenUnsegmented bodyCephalothoraxCephalothorax