Exam Questions and Answers on Virus. In this article we will discuss about:- 1. Definition of Viruses 2. Morphology of Virus 3. Reaction to Physical and Chemical Agents 4. Multiplication of Virus inside the Host Cell 5. Cultivation 6. Classification 7. Major Groups of DNA and RNA Viruses. Contents: Definition of Viruses Morphology of Virus Reaction to Physical and Chemical [...]
Everything you need to know about viruses. Some of the frequently asked questions are as follows:- Q.1. Are enzymes found in virions? Give examples. Ans. Some virions contain enzymes which help them in infecting their hosts and to carry on their metabolic activities inside their host, e.g., HIV a retrovirus is an RNA virus which replicates inside the cells of [...]
The following points highlight four important ways by which HIV devastates the immune system. The ways are: 1. Direct killing 2. Apoptosis 3. Destruction of un-infected cells 4. Destruction of immune precursor cells. Way # 1. Direct killing: When a large number of viruses is produced and buds out from the surface of CD4+ T cell surface, the cell membrane [...]