Question

a.Describe FIVE characteristics of a virus.

b.Name FIVE types of human herpesvirus and state an associated health problem of each named virus.

Answer 1

A. Following are the five distinct features and characteristics of these infectious micro organism ;

• It is very micro and little than any other organism and it can only be viewed and analyzed by the
  use of electron microscope.
• These organism doesn't have a layer of cell wall in their outer membrane but they do have some
  kind of coating made by a protein molecule
• These can only live and replicate into another within a host cell, it can't do it by alone.
• These generally not considered as cell, cause it doesn't have a cell features of cytoplasm or
  any organelle
• The gene molecule present inside these would be any one of the DNA or RNA, so it is easy to identify
  type of these organism.

Following are some of examples that are comes under Human herpes virus and their disease condition ;

1. epstein barr virus --- Associated health problem - Infectious mononucleosis

2. Cytomegalovirus --- Associated health problem - Hepatitis

3. Varicella zooster --- Associated health problem - Shingles

4. Human hepres 6 ( HHV) ---- associated health problem - Roseola

5. HSV -1 ------ Associated health problem -- Oral infection