However, certain authors have stated that HIV does not cause AIDS. For instance, Duesberg (1988), in his article provided certain evidences that HIV is not the sole reason for AIDS among people. On the other hand, many authors such as Blattner & et. al., (1988), have argued
The research was conducted to assess the reaction of the crayfish when exposed to stress. The observations of the experiment marked that the crayfish avoids the aversive illuminated arms when exposed to stress. In order to undertake the research, the method of the experiment
Once a certain level of a hormone is achieved in blood circulation, negative feedback prevents its further secretion; a mechanism that prevents over-activity of a hormone.
5. Recent research has related the onset of puberty to the
It involves pasting the whole genome sequence of the organism given in a FASTA format then clicking the ORF finder that will automatically give the start and the stop codons alongside the longest pattern. In this case, the human genome was given and upon subjecting it to
icity and the actions of the repressor gene ensure important parts of the cell are not destroyed in the process of mutation, molecule breakdown and other activities in the cell that involve a combination of enzymes. The effects of these enzymes are either one fold or two fold
Planet earth also referred to as a wet planet has a large volume of water covering it. According to Weston (2013), the water covers almost two-thirds of the world. This water is not stagnant but ever on the move flowing from rivers to oceans, lakes, swamps and the atmosphere, which is a scientific procedure known as the hydrological cycle.
Thus, each of the strands can be a template to make another chain of DNA bases. In effect, every time the cells of the body reproduce, the copying of the deoxyribonucleic acid takes place. The mechanism for
ns of the disease further reflect in the ‘inability’ of phagocytes to make ‘reactive oxygen species’ because of the lack or malfunction of NADPH complex, and thus the ‘susceptibility to infection increases’ in the affected population (Kepenekli 2014: 1). Evidence
Diabetes is divided into two types namely type one and type two.
Whether diabetes can be inherited genetically or not is not clear but it is thought that a person becomes a victim of this disease when he inherits a predisposition to the disease from his parents.
The author states that conventional laboratory methods of identifying disease-causing pathogens often involve morphological characterization and antigen detection. However, the traditional morphological examination which relies heavily on culture techniques, presents a serious laggard, on top of contamination problems.
The occurrence of the disease, from 1994 to 2004, among aged people, went up by 63% (Rubino et al 1). This rising occurrence is a testament to enhancement in managing diabetes-associated complications, globalization, as well as the accompanying metabolic
When it contracts, there is a drop in the pleural pressure. This lowers the alveolar pressure. The pressure gradient draws air the alveoli. Expiration during quiet breathing is a passive phenomenon. This is due to the fact that as the respiratory
Mitosis, on the other hand, involves division of nuclear chromosomes. It has four phases namely the prophase, metaphase, anaphase, and telophase. In prophase, chromatin material is condensed into distinct chromosomes that migrate to the center of the cell. At the opposite poles of the cell, there is the formation of spindle fibers.
The video introduces a new era of personalized, gene-based medicine relevant to everyone. Analysis of DNA takes place, and a person can predict the kinds of diseases associated with DNA that he might suffer. An individuals DNA differentiates them from
single “composite” cell of higher complexity “evolved from more separate simpler cells living in a symbiotic relationship with one another” (Karp, 2009, p.25). The evolution of eukaryotic cells begins in step 1; a large anaerobic which is heterotrophic prokaryote taking
In the population, 5.1 million people are of the age of 65 and above and the remaining population has been of younger onset Alzheimer under the age of 65. In the population, two-thirds with the disease are
Cloning of a human provides a solution of various ailments such as infertility. People suffering from infertility can have their own children by implanting cloned embryos into their uteruses. In addition, this method is
Alzheimers disease(AD) is characterized by neural cell death thus the concentrations of sodium in the hippocampus (which is the most affected part of the brain in AD) might be an indicator of the presence of AD as well as the extent of disease.
2) How does the change in
2). DNA is found in all the cells that make up a human being’s body; “all the information in the cells is stored responsible for the formation of one’s body is stored in the form of DNA” (Routh 2008, p. 2). DNA looks like a ladder with two sides that are connected
One of the issues associated with genetic diversity is mutation that occurs when there is a permanent change in an organisms’ genetic information. It caused by the introduction of new genetic characteristics or alleles. Mutation is usually caused by various factors.
ls that are in line with the provisions of Joint National Committee on the Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (Olafiranye et al 1).
According to the article, hypertension is an important risk factor of coronary heart disease, alongside
The absorption experiment for the premium recycled brand towels were as follows; 15.2 mL, 14.9mL, 15 mL, 15.2 ml, 15.5 ml, 15 ml. The average absorption rate for the premium brand paper was 20 ml of water. The graph below show the outcome
The spread can be prevented by avoiding overcrowded areas. People should be encouraged to use handkerchief when sneezing or coughing.
Some diseases such as ebola and athletes foot are spread by direct contact of the
Milica Zarkovic Bookman defines Middle age as the period between 40 and 60 years (Bookman, 2000, p. 7).The theories of Erikson, Vaillant, Levinson, and Peck deal with the foretold developments during Middle Age. Besides, theories of these psychologists, i.e. the stage theories deal with the psychological development of middle-aged human beings.
Solutions A and B are hypotonic to the intracellular fluid of the red blood cells immersed in them. This implies a higher concentration of the solute, sodium chloride in the solution as compared to that inside the cell cytoplasm. This led to a continuous inflow of water molecules into the cells making them swell and haemolyses.
ric animals such as pigs and poultry, the digestive system of ruminants is designed to ferment feedstuffs and avails all the precursors for energy for the animal to use.
The digestive system of ruminants like cattle enables the animals to efficiently, use the high roughage
Synarthroses joint does not have a joint cavity. Fibrous cartilage 'or bone tissues grow between the articulating surfaces of the two joined bones and make them unable to move freely against one another. Therefore, they are functionally defined as immovable (or slightly movable) joints that do not allow free movement. Examples include the skull joints.
oxygen and carbon (IV) oxide (Berg 71). In this experiment, Light as a necessity of photosynthesis is the variable under investigation. According to the research design in this experiment, leaf disks float
National Aeronautics and Space Administration poses a crucial question regarding the evidence of climate change whose answers aid in understanding the noticeable changes around the world.
The question has been addressed both in qualitative and
Therefore the project aims to determine if the worms obtained from natural CO2 vents are different from those living under controlled conditions, in terms of behaviour and physiology. As summarised by Lawrence and Soame, (2009, p.3,363), ragworm (Nereis) species utilises
A biological theory is an attempt to explain how a natural occurrence happens while a fact is actually something that is observable (Is…) With that being noted creationism involves beliefs in how something may
The other potential area of application for nanotechnology is biotechnology particularly in the filed of new drug discovery. This article discusses the scientific concept behind nanotechnology, its potential applications in new drug
? Advocates of these Ideas can define scientific Misconduct as, violation of the accepted standard codes by a scientist by failing to record all his/her observations, and also failing to assert only hypothesis that are strongly inductively supported by
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; nearly all PD in developing tissues has a single medium, which permit larger molecules to pass through the cells, whereas the severally branched PD in older tissues restrict large molecules.
Studies show that cellular redox state control intercellular transport via
DNA replication occurs in cells to ensure that the daughter cells contain genetic material from the parent cell through a process known as semi-conservative replication (Kurth & Gautier, 2010).
DNA replication relies