Essays on Biology

Loss of articular gristle, induration and eburnation of sub-chondral bone, osteophytes and sub-chondral cysts ( Keuttner and Goldberg 1995 ) . Osteoarthritis ( OA ) is the most common upset of the musculoskeletal system and is a effect of mechanical and biological events that destabilize …

Denaturing Gradient Gel Electrophoresis (DGGE) is a robust process by which point mutation can be detected. It depends upon polymerase chain reaction (PCR) products which denature at different temperatures depending upon if they contain homoduplex or different products from both wild type and mutated genes …

Annie Murphy Paul’s article `Kid stuff: Do parents really matter?` outlines the findings of a highly controversial study on the role of nature and nurture in children’s education. The article states that a group of researchers from George Washington University and the Institute of Psychiatry …

In the advent of modern technology, it was found out that the now-extinct species of the Neanderthals do share a common ancestry with the modern human beings. This was through the analysis of the Neanderthal bone DNA from discovered Neanderthal fossil specimens. These Neanderthals were …

Understanding is important to development of more complex procedure and ensuring efficiency in any area of operations. One of the tools used to develop a proper understanding and therefore diagnosis of a situation is the image of the situation. Sciences, technology, medicine and engineering all …

What is “ intelligence ” ? What is “ biologically programmed behaviour ” ? How make these behavioral forms associate to other facets of the biological science of the animate beings that possess them, and to their generative biological science in peculiar? How does intelligence …

Psychologists, for a long time, have always faced the problem of how various emotional and psychological factors surface and developing human beings. In order to solve this problem, these psychologists have traced the various ailments and causes backwards towards childhood times. As a result, modern …

There is a well of a difference between water-soluble vitamins and fat-soluble vitamins, the two classifications of the organic nutrient compounds called vitamins. The word vitamin comes from the Latin word “vita” meaning “life” and “amine”, which means “nitrogen” (“What’s the difference”, 1996). Vitamins are …

Introduction Zoonotic diseases are infectious diseases which can be transmitted from animals to man. Due to frequent contact and domestication of wildlife animals, zoonotic diseases are increasingly becoming more prevalent. Public parks and gardens are home to abundant populations of birds. One of the most …

The use of animals for medical research is a debatable issue with some claiming that for the benefit of science, medical research needs animals and testing on animals is a necessity for the progress of science. Others argue that it is unethical to use animals …

Diabetes is a malformation in the organic structure ‘s ability to change over glucose to energy. When nutrient is digested, it is transformed into fats, protein, or saccharides which the saccharides will impact the blood sugar degrees. Carbohydrates when digested will change over to glucose. …

Acknowledgement This case study would not be possible without the guidance and the help of several individuals who are in one way or another contributed and extended their valuable assistance in the preparation and completion of this study. My outmost gratitude to Ms. Maria Donna …

Now that you are familiar with the structure of prokaryotic cells, we can discuss the activities that allow these microbes to thrive. The life support activity of even the most structurally simple organism involves a large number of complex biochemical reactions. Most, although not all, …

1.0. Introduction Head and Neck cancer is increasingly becoming a very serious public health issue in the world, correlated with high incidence and mortality rates mainly in developing countries(Jeffries and Foulkes 2001). Deformities caused by the malignancy such as facial and neck injuries profoundly affect …

Brain is the part of the nervous system that is enclosed in the skull. All vertebrates have well-developed brains; most invertebrates do not have true brains. Instead, they have groups of nerve cells called nerve nets, nerve cords, or ganglia. The human brain is an …

The article, entitled “Relationship of Blood Mercury Levels to Health Parameters in the Loggerhead Sea Turtle” by Day et al. , (2007) aimed at investigating the threat of mercury as one of the pervasive environmental pollutants in loggerhead sea turtles (Caretta caretta). The rationale behind …

Pervasis Receives Orphan Drug Designation in Europe for Vascugel® to Prevent Arteriovenous Access Failure in Patients Undergoing Hemodialysis Cell-Based Therapy Aims to Regulate the Body’s Healing Response, Promoting Vascular Repair, Reducing the Need for Repeat Surgical Procedures and Improving Patient Outcomes Cambridge, Mass. , March …

Cell membranes are a bilayer make up of phospholipids, proteins, and cholesterol. Its main function is to regulate what comes in and out of the cell by means of diffusion, transport proteins and protein channels. Trans membrane proteins transport polar solutes across hydrophobic regions of …

Introduction The nervous system is involved in the transmission of signals for communication and for coordination of body systems. The principle cell of the nervous system is a neuron, the neuron components are a cell body, dendrites, axon, synaptic terminals and myelin sheath (not always). …

Introduction All living things requires energy to stay warm (mammals in this case) and to carry out other life process i.e. maintenance, growth, movement, daily activities etc. All of the dietary energy in humans is obtained from the main food sources including carbohydrates, fat and …

In accordance with the Necessity, there is an increase in demand for medical images for diagnosis application, the use of proper enhancement methods are inevitable. Medical imaging should be a challenging screening method for which effective, robust and cost-effective approaches are still to be developed. …

Basal Cell Carcinoma (BCC) or ‘rodent ulcer’ is a malignant tumor of the skin that develops from the basal cell layer of the epidermis and also from the hair follicles. It is a slow-growing tumor that usually develops in sun-affected skin. The tumor does not …

Autosomal Inheritance of Wrinkled and black Mutations in Drosophila melanogaster Abstract Homozygous Wrinkled virgin females and homozygous black male Drosophila melanogaster, were crossed. Mutations were located on chromosomes two and three respectively. The F1 generation, all Wrinkled and black, was inbred yielding and F2 generation. …

* It is a specialised connective tissue. * Osteogenic cells ⇒ osteoblast (makes matrix, active when young, and after fracture) ⇒ osteocyte ⇒ osteoclast (functions in resorption, breakdown of bone matrix) (makes cavities) (from blood monocyte) Bone Functions * Framework for support of the skeleton …

You need to understand the differences between bacteria, viruses, fungi and parasites; this also covers cell structure and growth pathogens. Common illnesses and infections Include bacteria for example tuberculosis, MRS., tetanus, gangrene, Legionnaires ‘disease, salmonella and conjunctivitis. Viruses like winter vomiting disease, measles, mumps, chickenpox, …

In 2014, the Nobel Prize in Chemistry was awarded to Eric Betzig and William Moerner who, working separately, laid the foundation for SMLM. In essence, this method relies on the possibility to turn the fluorescence of individual molecules on and off. Scientists image the same …

The perennial debate about nature and nurture–which is the more potent shaper of the human essence? –is perennially rekindled. It flared up again in the London Observer of Feb. 11, 2001. REVEALED: THE SECRET OF HUMAN BEHAVIOR, read the banner headline. ENVIRONMENT, NOT GENES, KEY …

The paper generally talks about the effect that the mutations have on the cargo molecules. The molecules are specifically those that contain proteins and are therefore referred to as the cargo proteins. The paper therefore looks into the nature of the effect on each of …

The extensive debate over ethics of stem cell research provides a number of differing points of views. Most of these take potently opposing sides in either justifying or rejecting stem cell research thereby enhancing the dilemma faced by the common man in understanding the issue. …

Prostitution and Venereal disease Prostitution: ?Prostitution is the act or practice of providing sexual services to another person in return for payment. Venereal disease: ? A disease that is contracted and transmitted by sexual contact, caused by microorganisms that survive on the skin or mucus …