Bacteriophages

The novel I Am Legend written by in 1954 is a classic book that merges horror with science fiction. Richard Matheson, an American writer, wrote the book with this book being influential in the development of zombie-inspired genre of fiction. Its scope and area of discussion is simple, where it involves an era when the nuclear war has ended, but a major mutation spreads across the world. It changes every human being living on the surface of the earth except one person: Robert Neville. The rest of…

Links between the human immune system, pathogens, antibiotic resistance and mutations are discussed in this report. It is stated that the antibiotic resistance and overuse of vaccine has contributed to the increased incidence of emerging diseases and resistance to their controls and treatments. The human immune system is the protection of the body against potentially damaging foreign bodies and other disease. Pathogens are organisms, including a bacterium, a virus or a fungus and these causes…

Cultural Control Measures:  Do not plant flowering trees and shrubs immediately nearto building entrances or along the walkways.  Remove sting from individuals with the help of a vacuum or flyswatter.  In exterior surfaces including walls, masonry steps, buildings, bleachers, fences, playground equipment, etc. eliminate harborage by sealing openings.  Clean up and store food and drink spills immediately.  Store food items and drink to be consumed outdoors in sealed containers.[7] Use of…

Modern society has been blessed with brilliant minds that have helped humans increase their life expectancy to the point where we are living well even at what is considered overpopulation. We were able to cure polio, the black plague, and other diseases that would’ve been considered a virtual death sentence a few centuries ago. Because of this, our bodies have almost no need to fight off diseases naturally. Now it isn’t being worried about at the moment because we still have tons of modern…

An insight into the methods of Conservation Genetics Understanding the need to use genetic methods in conservation biology will greatly aid in the process of bringing back any species that play an important role in their native habitat. Implementing genetic tools and methods in conservation programs helps to minimize the loss of genetic diversity, which allows populations to adapt to environmental changes and stressors. This helps to minimize the loss of the population numbers by reducing the…

Microorganisms are living organisms which can be seen only with the aid of microscope. They are widespread in nature and are beneficial to life, but some can cause serious harm. There are six major types of micro-organisms these are bacteria, archaea, fungi, protozoa, algae, and viruses. This essay aims to analyse micro-organisms and disease. First the key features of the main categories of micro-organisms and the roles of commensals, and pathogens will be explained respectively. Then mode of…

It is generally accepted that a virophage is a viral agent that infects other larger viruses. It is a dsDNA virus which utilizes the replication factories of other viruses to reproduce itself. Virophages are essentially parasitic in nature, much in the same way as traditional satellite viruses. It is not without controversy that distinctions between satellite viruses and virophages are described. The difference between the two often seem more semantic than factual and more supported by…

We determined that the UV light treatment was the most potent treatment of mutagenesis and also the most effective in inducing mutations, followed by the Tn5 and the EMS was the least potent and effective treatment. Introduction A culture of E.coli K12, KL14 was used to carry out the experiment on. The advantage of using E.coli cells to experiment on is that they are haploid organisms and contain a single set of chromosomes so if a mutation was to occur, the bacterial cell will express it as…

Introduction The human microbiota is a combination of many different microorganisms, many of which are bacteria. The microorganisms in the human microbiota are referred to as commensal flora. There are an estimated 100 trillion good bacteria in the human body.[7] Most of which are found in the gastro-intestinal tract although they also reside in the skin, the saliva and the mucosa. These bacteria are diverse; there are estimated to be >1000 species in the human gut alone.[7] Bacteria that…

Bacteria They are formed by a single rudimentary cell. They have no nucleus or plastids, but chromatin. Some have assimilators pigments. They are on earth, water, and air, and can generally move. They may be causing disease and therefore are called pathogens. Those that do not cause disease are called saprophytes. In some cases, they are even useful, as in digestive processes or synthesis of vitamins. By the way, they are called coconuts when circular; bacilli if they have the form of rods;…