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 [...]
The below mentioned article provides a study note on bacterial genomes. Bacteria are very small unicellular organisms that do not contain nuclear envelope, mitochondria, endoplasmic reticulum, mitotic apparatus and nucleolus etc., and divide by fission. Bacteria have a rigid cell wall which surrounds their cytoplasmic membrane. Their cytoplasm contains ribosomes. mesosomes and several granular inclusions. About 1/5 of the cell [...]
The below mentioned article provides a study note on transposable elements. The term "transposon" was coined by Hedges and Jacob in 1974 for mobile discrete DNA sequences in the genome; such sequences are able to transport themselves from one location to the other locations within the genome. These sequences are also called transposable genetic elements. Transposable genetic elements are found [...]