In this article we will discuss about Centromere:- 1. Structure of Centromere 2. Types of Centromere. Structure of Centromere: The site of constriction in a chromosome under light microscope is generally taken as the position of centromere. It is generally believed that constitutive heterochromatin is present in the centromeric region. The component of centromere is mainly the kinetochore, and DNA [...]
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 following points highlight the four main replications of DNA. The replications are: 1. Plasmid 2. Mitochondrial DNA 3. Kinetoplast DNA 4. Chloroplast DNA. Replication # 1. Plasmid: In addition to the nucleoid DNA, the cytoplasm of bacterial cell contains one or more extra chromosomal mini-circular DNA duplexes which are known as plasmids that can replicate independently of the nucleoid [...]