In this article we will discuss about:- 1. Meaning of F-Plasmid 2. Organization of the F Plasmid 3. Mechanism of Transfer of F Factor 4. Integration of F Plasmid into the Bacterial Chromosome 5. F Mediated Transfer of Bacterial Chromosome 6. Conjugation Mapping 7. F-Duction (Sex-Ductiori) 8. Interspecific Transfer of Plasmids. Meaning of F-Plasmid: The F-plasmid is a conjugative plasmid [...]
The below mentioned article provides a study note on temperate bacteriophages, these are the phages that can enter into a lysogenic relationship with their host. Subject-Matter of Temperate Bacteriophage: There are some bacteria and bacteriophages (bacterial viruses) whose relationships are partially symbiotic. The bacterium may carry such a phage as a part of its chromosome, while in turn, the phage [...]
In this article we will discuss about:- 1. Subject-Matter of Paramecium 2. Reproduction and Mode of Action of Paramecium 3. Origin of Paramecium. Subject-Matter of Paramecium: Sonneborn in 1943 found that Paramecium aurelia strains could be classified into "Killer" and "Sensitive" types. The killer strain secreted a toxic substance "paramecin" in the growing medium and this toxin was responsible for [...]