The DNA integrates itself into the host cell's DNA chromosomes. In this state, the viral DNA is called a provirus . This provirus can divide indefinitely within the host cell's chromosome. The provirus never comes out of the host cell's chromosome. Assembly Assembly consists of the combining of the newly synthesized capsids with newly synthesized viral nucleic acid core.
Some host cells burst open releasing the newly produced virions.
Most enveloped viruses leave the host cell through a process called budding in which the host cell remains intact. The envelope of the new virions is made from acquiring a portion of the host cell's plasma membrane during budding or in some cases, from the membrane of the Golgi complex or nuclear membrane. Release by budding Release by exocytosis Bacterial Viruses Viruses that infect bacterial cells are known as bacteriophages or simply, phages . The life cycle of bacterial viruses can be seen in this picture . The viral DNA and capsids are assembled together to make new virions and then the virions are released from the host bacterial cell resulting in the rupturing of the host cell.