A2.3 Viruses HL - planning sheet
Planning sheet for topic A2.3 Viruses Theme A - Unity and diversity & Level of Organisation: Level 2 - Cells This topic explores the structure and the life cycle of viruses. The lytic cycle is well known but the lysogenic cycle is also important. With the existence of such a huge diversity of viral structures it is likely that there are several viral origins, each of which has developed into an obligate parasite....