In this article we will discuss about the Physicochemical Organization of Chromosome. The major chemical components of the chromosomes are DNA, proteins (histones and non-histones) and small amount of RNA. Besides these, calcium and some other minerals are also present. Histones are basic proteins that are charged positively at neutral pH. Non-histone proteins are acidic. Histones are small proteins containing [...]
In this article we will discuss about the transposable elements in the eukaryotic organisms. Transposons have been discovered in eukaryotic organisms also, e.g., controlling elements in maize, Tam1 elements in Antirrhinum majus, Ty elements in Yeast and FB elements in Drosophila. These elements can be divided into two main classes. 1. This class includes the transposable elements that are similar [...]
The following points highlight the top five techniques of chromosome banding. The techniques are: 1. C-Bands 2. G.Bands 3. Q-Bands 4. N-Bands 5. Other Techniques of Chromosome Banding. Chromosome Banding: Technique # 1. C-Bands: The technique of C-banding originated after the work of Pardue and Gall who reported that constitutive heterochromatin can be stained specifically by Giemsa-solution. Each chromosome possesses [...]