In this article we will discuss about the Two Kingdom Classification of Organisms (Before 1969). In the past all the organisms had been divided into two groups, plants and animals, mainly on the basis of presence or absence of cell wall. This was also done by Linnaeus (the father of taxonomy). He founded two kingdoms— […]
Two Kingdom Classification of Organisms
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Viruses: Definition, Size, and Types
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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 […]
Components of Viruses (4 Components)
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The following points highlight the four main Components of Viruses. The components are: 1. Nucleoid 2. Capsid 3. Envelope 4. Enzymes. Component # 1. Nucleoid: It represents the viral chromosome. Nucleoid or viral chromosome is made of a single molecule of nucleic acid. It may be linear or circular with various degrees of coiling. Nucleoid […]
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