In this article we will discuss about Modern Concept of Gene:- 1. Introduction to the Modern Concept of Gene 2. Definition of Genes 3. The Gene as a Unit of Function (Cistron) 4. Gene as the Unit of Recombination (Recon) 5. The Gene as a Unit of Mutation (Muton) 6. Identification of Genetic Material. Contents: Introduction to the Modern Concept [...]
In this notes we will discuss about Mutation:- 1. Meaning of Mutation 2. Historical Account of Mutation 3. Characteristics 4. Types. Notes # Meaning of Mutation: The offsprings resemble their parents in one or several respects, yet there are differences between the two. These differences, whether large or small, are called variations. Some of the variations may be induced by [...]
The following points highlight the five chief agents which bring about mutation in organisms. The agents are: 1. Induction of Mutation by Ionizing Radiations 2. Non-Ionizing Radiations 3. Heat and Temperature 4. Mustard Gas 5. Chemical Mutagens. Agent # 1. Induction of Mutation by Ionizing Radiations: X-ray is representative of ionizing radiations- a group including alpha, beta and gamma radiation [...]