The following points highlight the four major branches of Taxonomy. The branches are: 1. Cytotaxonomy 2. Chemotaxonomy 3. Numerical Taxonomy 4. Cladistics Taxonomy. Branch # 1. Cytotaxonomy: It is classification based on information provided by comparative cytological studies, number of chromosomes, structure and meiotic behaviour of chromosomes. It is known that fewer and larger chromosomes have been formed in many [...]
The upcoming discussion will update you about the difference between Lysogenic and Lytic Phases of a Virus. Difference # Lysogenic Phase: 1. The viral genome or its complementary DNA gets integrated with the host DNA. It is called pro-phage or provirus. 2. The host DNA is not hydrolysed during lysogenic phase. 3. The pro-phage or provirus replicates only once along [...]
In this article we will discuss about:- 1. Definition of Viruses 2. Size of Viruses 3. Shape 4. Classification 5. Types. Definition of Viruses: Virus (L. poison) is a nucleoprotein entity which is able to utilize the synthetic machinery of a living cell of another organism for its multiplication which does not involve growth and division. Even before its discovery [...]