Some investigators of 1950s focused their attention on viruses containing protein and RNA, but no DNA. The poliomyelitis virus, influenza virus and the virus that causes mosaic disease in tobacco plants (TMV) were thus shown to have genes made of RNA. Earlier in 1935 W. M. Stanley had reported the isolation of a crystalline protein from infected tobacco plants, which [...]
In this article we will discuss about Genetic Material:- 1. Properties of Genetic Material 2. Evidence of Genetic Material. Properties of Genetic Material: A living cell is composed of several inorganic and organic components. Among them, one will obviously act as genetic material responsible for controlling hereditary characters. Identification of this genetic material remained controversial for a long time. Now [...]
The below mentioned article provides an overview on Expression Hosts and Vectors in Eukaryotes. One of the main objectives of gene cloning is to note the expression of the cloned gene encoding the protein. It is generally done in a foreign organism, for producing at a high level and again some hosts are needed for this purpose. These vectors are [...]