which of the following is a statement from cell theory? 1.all cells have a nucleus 2. all cells have a cell wall 3. all cells come from other cells 4. all cells make up multicellular organisms

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.