Is there any virus that contains both DNA and RNA in its genome? Watch
I came across a question: Which virus contains both DNA and RNA?
Having said that, at a certain stage in its life-cycle within a CD-4 T lymphocyte, the HIV-1 virus, which is a retrovirus (Greek retro = backward or behind; the name derives from the fact that this group of viruses have RNA in their genome which uses the enzyme reverse transcriptase to make DNA from RNA [other way round [back-to-front like] compared to the usual process of transcription = DNA -----> mRNA], AND THIS DNA CAN BE INCORPORATED INTO THE GENOME.
So, although HIV is an RNA virus, it can have both RNA and DNA.
Hope this answers your Q.
M (former medical student)