Prions may play a role in Alzheimer's disease. Illustrate the lytic cycle of a typical virus. After contracting the chicken-pox virus as a child, continual immunization occurs during the life of the infected person. Explain how this is possible by means of alternating lytic cycles and lysogeny. No, because they are not capable of self-replication given adequate nutrients, etc.
Viruses can only replicate if they infect appropriate host cells.
By type of nucleic acid, by hosts they infect, by tissues they infect, but their shape, and by diseases they cause. Illustrate the lytic cycle of a typical virus. Lysis of host cells, spilling of lysed host cell contents, and stimulation of host cell sensory nerve endings by the spilled contents of the lysed cells. After contracting the chicken-pox virus as a child, continual immunization occurs during the life of the infected person. Explain how this is possible by means of alternating lytic cycles and lysogeny.