Cells do not replicate "In DNA". Cells replicate their DNA during the process of cell division.
The DNA only needs to replicate if the cell is going to divide. In a dividing cell the DNA must replicate in order to provide a complete copy of the genome to each new cell.
In the cell nucleus
mitosis
DNA is the genetic "instructions" for how the cell should replicate. It also controls the behavior of the cell.
A virus replicates its DNA in a cell when it infects the host
cells must copy their DNA to replicate
DNA replication takes place in the chromosome which is located in the nucleus of a cell.
It cannot replicate without DNA. All living things are made up of DNA.
For a virus to replicate it must insert its own DNA into a host nucleus cell. This newly infected cell finds another host cell to replicate, and a viral infection is produced.
g1
The S phase of the cell cycle
DNA pal