virus pathogenicity

• give 4 ways in which viruses can be pathogenic

  cell lysis ,productions of toxic substances , cell transformation and immune suppression
• what is meant by pathogenicity


  this is an organisms ability to cause disease
• what is meant by cell lysis


  this is when viruses escape from cells to infect other cells
• how can cell transformation be pathogenic

  viral DNA can integrate into the host chromosomes altering it
• how can cell transformation lead to a cell becoming cancerous


  if the DNA inserts into a proto-oncogene or tumor suppressor gene it can result in the cell undergoing uncontrollable cell division