The only way viruses can replicate is by parasitizing living cells and using the cell's mechanisms to replicate their genetic materials and protein components.
Lytic Cycle and Lysogenic Cycle.
viruses do replication with their DND
L. H. Collier has written: 'Human virology' -- subject(s): Medical virology, Methods, Microbiology, Pathogenicity, Virology, Virus Replication, Virus diseases, Viruse Replication, Viruses
There are two main methods of replication, mitosis and meiosis
viruses are non cellular , they have no sexual or asexual reproduction they reproduce by replication
temperate viruses
Viruses require host cells, whereas cells provide their own replication mechanisms.
Viral replication is the process of creating viruses. This can only occur once a virus has infected a cell - because viruses cannot replicate by themselves (they need to use a host cell).
They need a living cell. It is essential for replication.
I believe, exogenous virus exist as: "replication competent viruses that are transmitted horizontally in mice, while endogenous viruses exist as germline sequences that are usually not replication competent by may recombine with exogenous viruses during the course of infection." This would refer to exogenous retroviruses.
DNA Viruses: "The genome replication of most DNA viruses takes place in the [host] cell's nucleus." RNA Viruses: "Replication usually takes place in the cytoplasm." Of course, some viruses will differ from these generalizations.
Viruses can not replicate without a living host cell. This is one reason that they are not considered to be alive.
Viruses are replication parasites that can do nothing until they take over a living cell. Bacteria are living cells.