Answer:
This diagram shows an RNA molecule entering a cell and then replicating itself. It’s the SARS-CoV- 2 virus, which most people call COVID. It uses RNA instead of DNA as it’s genetic material; that’s common among viruses.
Many RNA-based viruses don’t use DNA at all to replicate, though some like HIV do.
In order for SARS-CoV-2 RNA to replicate there must be an enzyme called either RNA-dependent RNA polymerase or RNA replicase. RNA-based viruses produce a version of this enzyme so their genetic material can be copied.
SARS-CoV-2 uses a single stranded version of RNA but some other viruses use double stranded RNA that’s entirely analogous to double stranded DNA.
Modern animals, plants, and bacteria all use DNA as their genetic material, probably because DNA is more stable, but the very first living things probably used RNA.
Step-by-step explanation:
Hope it helps have a good day :D